Some content comes and goes when scanning, some content is simply skipped

Ok, that would be a difference between our setups, I have no automatic inode/file change detection going on in my setup.

In your case Plex gets a one-by-one file notification from the file system of what files need to be Scanned.

To reproduce the behaviour I am seeing, feeding Plex a whole lot of file changes (at least whole seasons) at a time could be key.

First , make-series is a little shell script I crafted to create test files.
Nothing fancy here but it does need rewriting. I’ve had it for ages.

#!/bin/sh

# Make a fake TV series for match and metadata debugging

Dir=/glock/qa/tv

# Set = 1 to print rather than create filenames
Testing=0

if [ "x$1" = "x" ]; then
  echo Usage:  $0 Name \(Remember to use \" or \'  as needed \) \[number of seasons\] \[Episodes/Season\]
  exit 1
fi

Name="$1"

# Get Season count
Seasons=7
if [ "x$2" != "x" ]; then
  Seasons=$2
fi

# Get Episode count
Episodes=20
if [ "x$3" != "x" ]; then
  Episodes=$3
fi

ThreeDig=0
[ "$Episodes" -gt 99 ] && ThreeDig=1


# add upper limit if given
if [ "$2" = "" ]; then
 Limit=07
else
 Limit=$2
fi

S=1
while [ $S -le $Seasons ]; 
do

  # Prepare Season
  Season="$S"

  # Pad
  if [ $S -lt 10 ]; then
    Season="0${S}"
  fi

  echo Making \"${1}/Season ${Season}\"
  mkdir -p "${Dir}/${1}/Season ${Season}"
  
  E=1
  while [ $E -le $Episodes ]; 
  do

    EpisodeNum=$E

    # Support series > 100 episodes
    if [ $ThreeDig -gt 0 ]; then
      if [ $E -lt 100 ]; then
        EpisodeNum="0$EpisodeNum"
      fi
    fi
 
    if [ $E -lt 10 ]; then
      EpisodeNum="0$EpisodeNum"
    fi

if [ $Testing -gt 0 ]; then

    echo Path = \""${Dir}/${1}/Season ${Season}/${1} - S${Season}E${EpisodeNum}.mkv"\"

else 

    echo $(uuidgen)  $(uuidgen)  $(uuidgen) `date` $1 this is must some stuff to make the file long enough to not be skipped `date` $1 > "${Dir}/${1}/Season ${Season}/${1} - S${Season}E${EpisodeNum}.mkv"

fi
    E=$(($E + 1))
  done

  S=$(($S + 1))
done
echo Done

You want it bigger?

I’ve taken ‘Guiding Light’ as you requested and bump it up a bit.

How about I go to the extreme –
58 seasons each with 254 episodes (which is well beyond reality)
There will be metadata for those which really exist and nothing for those which don’t exist but PMS will parse them all.

[chuck@lizum tv.2045]$ make-series "Guiding Light" 58 254
Making "Guiding Light/Season 01"
Making "Guiding Light/Season 02"
Making "Guiding Light/Season 03"
Making "Guiding Light/Season 04"
Making "Guiding Light/Season 05"
Making "Guiding Light/Season 06"
Making "Guiding Light/Season 07"
Making "Guiding Light/Season 08"
Making "Guiding Light/Season 09"
Making "Guiding Light/Season 10"
Making "Guiding Light/Season 11"
Making "Guiding Light/Season 12"
Making "Guiding Light/Season 13"
Making "Guiding Light/Season 14"
Making "Guiding Light/Season 15"
Making "Guiding Light/Season 16"
Making "Guiding Light/Season 17"
Making "Guiding Light/Season 18"
Making "Guiding Light/Season 19"
Making "Guiding Light/Season 20"
Making "Guiding Light/Season 21"
Making "Guiding Light/Season 22"
Making "Guiding Light/Season 23"
Making "Guiding Light/Season 24"
Making "Guiding Light/Season 25"
Making "Guiding Light/Season 26"
Making "Guiding Light/Season 27"
Making "Guiding Light/Season 28"
Making "Guiding Light/Season 29"
Making "Guiding Light/Season 30"
Making "Guiding Light/Season 31"
Making "Guiding Light/Season 32"
Making "Guiding Light/Season 33"
Making "Guiding Light/Season 34"
Making "Guiding Light/Season 35"
Making "Guiding Light/Season 36"
Making "Guiding Light/Season 37"
Making "Guiding Light/Season 38"
Making "Guiding Light/Season 39"
Making "Guiding Light/Season 40"
Making "Guiding Light/Season 41"
Making "Guiding Light/Season 42"
Making "Guiding Light/Season 43"
Making "Guiding Light/Season 44"
Making "Guiding Light/Season 45"
Making "Guiding Light/Season 46"
Making "Guiding Light/Season 47"
Making "Guiding Light/Season 48"
Making "Guiding Light/Season 49"
Making "Guiding Light/Season 50"
Making "Guiding Light/Season 51"
Making "Guiding Light/Season 52"
Making "Guiding Light/Season 53"
Making "Guiding Light/Season 54"
Making "Guiding Light/Season 55"
Making "Guiding Light/Season 56"
Making "Guiding Light/Season 57"
Making "Guiding Light/Season 58"
Done
[chuck@lizum tv.2046]$ find /glock/plexinc/qa/tv/Guiding\ Light/ -type f -print | wc -l
14732
[chuck@lizum tv.2047]$ ls -la /glock/plexinc/qa/tv/Guiding\ Light/*01
total 1036
drwxr-xr-x  2 chuck chuck 12288 Oct 31 02:50 ./
drwxr-xr-x 60 chuck chuck  4096 Oct 31 02:52 ../
-rw-r--r--  1 chuck chuck   274 Oct 31 02:50 Guiding Light - S01E001.mkv
-rw-r--r--  1 chuck chuck   274 Oct 31 02:50 Guiding Light - S01E002.mkv
-rw-r--r--  1 chuck chuck   274 Oct 31 02:50 Guiding Light - S01E003.mkv
-rw-r--r--  1 chuck chuck   274 Oct 31 02:50 Guiding Light - S01E004.mkv
-rw-r--r--  1 chuck chuck   274 Oct 31 02:50 Guiding Light - S01E005.mkv
-rw-r--r--  1 chuck chuck   274 Oct 31 02:50 Guiding Light - S01E006.mkv
-rw-r--r--  1 chuck chuck   274 Oct 31 02:50 Guiding Light - S01E007.mkv
-rw-r--r--  1 chuck chuck   274 Oct 31 02:50 Guiding Light - S01E008.mkv
-rw-r--r--  1 chuck chuck   274 Oct 31 02:50 Guiding Light - S01E009.mkv
-rw-r--r--  1 chuck chuck   274 Oct 31 02:50 Guiding Light - S01E010.mkv
-rw-r--r--  1 chuck chuck   274 Oct 31 02:50 Guiding Light - S01E011.mkv
-rw-r--r--  1 chuck chuck   274 Oct 31 02:50 Guiding Light - S01E012.mkv
-rw-r--r--  1 chuck chuck   274 Oct 31 02:50 Guiding Light - S01E013.mkv
-rw-r--r--  1 chuck chuck   274 Oct 31 02:50 Guiding Light - S01E014.mkv
-rw-r--r--  1 chuck chuck   274 Oct 31 02:50 Guiding Light - S01E015.mkv
-rw-r--r--  1 chuck chuck   274 Oct 31 02:50 Guiding Light - S01E016.mkv
-rw-r--r--  1 chuck chuck   274 Oct 31 02:50 Guiding Light - S01E017.mkv
-rw-r--r--  1 chuck chuck   274 Oct 31 02:50 Guiding Light - S01E018.mkv
-rw-r--r--  1 chuck chuck   274 Oct 31 02:50 Guiding Light - S01E019.mkv
-rw-r--r--  1 chuck chuck   274 Oct 31 02:50 Guiding Light - S01E020.mkv
-rw-r--r--  1 chuck chuck   274 Oct 31 02:50 Guiding Light - S01E021.mkv
-rw-r--r--  1 chuck chuck   274 Oct 31 02:50 Guiding Light - S01E022.mkv
-rw-r--r--  1 chuck chuck   274 Oct 31 02:50 Guiding Light - S01E023.mkv
-rw-r--r--  1 chuck chuck   274 Oct 31 02:50 Guiding Light - S01E024.mkv
-rw-r--r--  1 chuck chuck   274 Oct 31 02:50 Guiding Light - S01E025.mkv
-rw-r--r--  1 chuck chuck   274 Oct 31 02:50 Guiding Light - S01E026.mkv
-rw-r--r--  1 chuck chuck   274 Oct 31 02:50 Guiding Light - S01E027.mkv
-rw-r--r--  1 chuck chuck   274 Oct 31 02:50 Guiding Light - S01E028.mkv
-rw-r--r--  1 chuck chuck   274 Oct 31 02:50 Guiding Light - S01E029.mkv
-rw-r--r--  1 chuck chuck   274 Oct 31 02:50 Guiding Light - S01E030.mkv
-rw-r--r--  1 chuck chuck   274 Oct 31 02:50 Guiding Light - S01E031.mkv
-rw-r--r--  1 chuck chuck   274 Oct 31 02:50 Guiding Light - S01E032.mkv
-rw-r--r--  1 chuck chuck   274 Oct 31 02:50 Guiding Light - S01E033.mkv
-rw-r--r--  1 chuck chuck   274 Oct 31 02:50 Guiding Light - S01E034.mkv
-rw-r--r--  1 chuck chuck   274 Oct 31 02:50 Guiding Light - S01E035.mkv
-rw-r--r--  1 chuck chuck   274 Oct 31 02:50 Guiding Light - S01E036.mkv
-rw-r--r--  1 chuck chuck   274 Oct 31 02:50 Guiding Light - S01E037.mkv
-rw-r--r--  1 chuck chuck   274 Oct 31 02:50 Guiding Light - S01E038.mkv
-rw-r--r--  1 chuck chuck   274 Oct 31 02:50 Guiding Light - S01E039.mkv
-rw-r--r--  1 chuck chuck   274 Oct 31 02:50 Guiding Light - S01E040.mkv
-rw-r--r--  1 chuck chuck   274 Oct 31 02:50 Guiding Light - S01E041.mkv
-rw-r--r--  1 chuck chuck   274 Oct 31 02:50 Guiding Light - S01E042.mkv
-rw-r--r--  1 chuck chuck   274 Oct 31 02:50 Guiding Light - S01E043.mkv
-rw-r--r--  1 chuck chuck   274 Oct 31 02:50 Guiding Light - S01E044.mkv
-rw-r--r--  1 chuck chuck   274 Oct 31 02:50 Guiding Light - S01E045.mkv
-rw-r--r--  1 chuck chuck   274 Oct 31 02:50 Guiding Light - S01E046.mkv
-rw-r--r--  1 chuck chuck   274 Oct 31 02:50 Guiding Light - S01E047.mkv
-rw-r--r--  1 chuck chuck   274 Oct 31 02:50 Guiding Light - S01E048.mkv
-rw-r--r--  1 chuck chuck   274 Oct 31 02:50 Guiding Light - S01E049.mkv
-rw-r--r--  1 chuck chuck   274 Oct 31 02:50 Guiding Light - S01E050.mkv
-rw-r--r--  1 chuck chuck   274 Oct 31 02:50 Guiding Light - S01E051.mkv
-rw-r--r--  1 chuck chuck   274 Oct 31 02:50 Guiding Light - S01E052.mkv
-rw-r--r--  1 chuck chuck   274 Oct 31 02:50 Guiding Light - S01E053.mkv
-rw-r--r--  1 chuck chuck   274 Oct 31 02:50 Guiding Light - S01E054.mkv
-rw-r--r--  1 chuck chuck   274 Oct 31 02:50 Guiding Light - S01E055.mkv
-rw-r--r--  1 chuck chuck   274 Oct 31 02:50 Guiding Light - S01E056.mkv
-rw-r--r--  1 chuck chuck   274 Oct 31 02:50 Guiding Light - S01E057.mkv
-rw-r--r--  1 chuck chuck   274 Oct 31 02:50 Guiding Light - S01E058.mkv
-rw-r--r--  1 chuck chuck   274 Oct 31 02:50 Guiding Light - S01E059.mkv
-rw-r--r--  1 chuck chuck   274 Oct 31 02:50 Guiding Light - S01E060.mkv
-rw-r--r--  1 chuck chuck   274 Oct 31 02:50 Guiding Light - S01E061.mkv
-rw-r--r--  1 chuck chuck   274 Oct 31 02:50 Guiding Light - S01E062.mkv
-rw-r--r--  1 chuck chuck   274 Oct 31 02:50 Guiding Light - S01E063.mkv
-rw-r--r--  1 chuck chuck   274 Oct 31 02:50 Guiding Light - S01E064.mkv
-rw-r--r--  1 chuck chuck   274 Oct 31 02:50 Guiding Light - S01E065.mkv
-rw-r--r--  1 chuck chuck   274 Oct 31 02:50 Guiding Light - S01E066.mkv
-rw-r--r--  1 chuck chuck   274 Oct 31 02:50 Guiding Light - S01E067.mkv
-rw-r--r--  1 chuck chuck   274 Oct 31 02:50 Guiding Light - S01E068.mkv
-rw-r--r--  1 chuck chuck   274 Oct 31 02:50 Guiding Light - S01E069.mkv
-rw-r--r--  1 chuck chuck   274 Oct 31 02:50 Guiding Light - S01E070.mkv
-rw-r--r--  1 chuck chuck   274 Oct 31 02:50 Guiding Light - S01E071.mkv
-rw-r--r--  1 chuck chuck   274 Oct 31 02:50 Guiding Light - S01E072.mkv
-rw-r--r--  1 chuck chuck   274 Oct 31 02:50 Guiding Light - S01E073.mkv
-rw-r--r--  1 chuck chuck   274 Oct 31 02:50 Guiding Light - S01E074.mkv
-rw-r--r--  1 chuck chuck   274 Oct 31 02:50 Guiding Light - S01E075.mkv
-rw-r--r--  1 chuck chuck   274 Oct 31 02:50 Guiding Light - S01E076.mkv
-rw-r--r--  1 chuck chuck   274 Oct 31 02:50 Guiding Light - S01E077.mkv
-rw-r--r--  1 chuck chuck   274 Oct 31 02:50 Guiding Light - S01E078.mkv
-rw-r--r--  1 chuck chuck   274 Oct 31 02:50 Guiding Light - S01E079.mkv
-rw-r--r--  1 chuck chuck   274 Oct 31 02:50 Guiding Light - S01E080.mkv
-rw-r--r--  1 chuck chuck   274 Oct 31 02:50 Guiding Light - S01E081.mkv
-rw-r--r--  1 chuck chuck   274 Oct 31 02:50 Guiding Light - S01E082.mkv
-rw-r--r--  1 chuck chuck   274 Oct 31 02:50 Guiding Light - S01E083.mkv
-rw-r--r--  1 chuck chuck   274 Oct 31 02:50 Guiding Light - S01E084.mkv
-rw-r--r--  1 chuck chuck   274 Oct 31 02:50 Guiding Light - S01E085.mkv
-rw-r--r--  1 chuck chuck   274 Oct 31 02:50 Guiding Light - S01E086.mkv
-rw-r--r--  1 chuck chuck   274 Oct 31 02:50 Guiding Light - S01E087.mkv
-rw-r--r--  1 chuck chuck   274 Oct 31 02:50 Guiding Light - S01E088.mkv
-rw-r--r--  1 chuck chuck   274 Oct 31 02:50 Guiding Light - S01E089.mkv
-rw-r--r--  1 chuck chuck   274 Oct 31 02:50 Guiding Light - S01E090.mkv
-rw-r--r--  1 chuck chuck   274 Oct 31 02:50 Guiding Light - S01E091.mkv
-rw-r--r--  1 chuck chuck   274 Oct 31 02:50 Guiding Light - S01E092.mkv
-rw-r--r--  1 chuck chuck   274 Oct 31 02:50 Guiding Light - S01E093.mkv
-rw-r--r--  1 chuck chuck   274 Oct 31 02:50 Guiding Light - S01E094.mkv
-rw-r--r--  1 chuck chuck   274 Oct 31 02:50 Guiding Light - S01E095.mkv
-rw-r--r--  1 chuck chuck   274 Oct 31 02:50 Guiding Light - S01E096.mkv
-rw-r--r--  1 chuck chuck   274 Oct 31 02:50 Guiding Light - S01E097.mkv
-rw-r--r--  1 chuck chuck   274 Oct 31 02:50 Guiding Light - S01E098.mkv
-rw-r--r--  1 chuck chuck   274 Oct 31 02:50 Guiding Light - S01E099.mkv
-rw-r--r--  1 chuck chuck   274 Oct 31 02:50 Guiding Light - S01E100.mkv
-rw-r--r--  1 chuck chuck   274 Oct 31 02:50 Guiding Light - S01E101.mkv
-rw-r--r--  1 chuck chuck   274 Oct 31 02:50 Guiding Light - S01E102.mkv
-rw-r--r--  1 chuck chuck   274 Oct 31 02:50 Guiding Light - S01E103.mkv
-rw-r--r--  1 chuck chuck   274 Oct 31 02:50 Guiding Light - S01E104.mkv
-rw-r--r--  1 chuck chuck   274 Oct 31 02:50 Guiding Light - S01E105.mkv
-rw-r--r--  1 chuck chuck   274 Oct 31 02:50 Guiding Light - S01E106.mkv
-rw-r--r--  1 chuck chuck   274 Oct 31 02:50 Guiding Light - S01E107.mkv
-rw-r--r--  1 chuck chuck   274 Oct 31 02:50 Guiding Light - S01E108.mkv
-rw-r--r--  1 chuck chuck   274 Oct 31 02:50 Guiding Light - S01E109.mkv
-rw-r--r--  1 chuck chuck   274 Oct 31 02:50 Guiding Light - S01E110.mkv
-rw-r--r--  1 chuck chuck   274 Oct 31 02:50 Guiding Light - S01E111.mkv
-rw-r--r--  1 chuck chuck   274 Oct 31 02:50 Guiding Light - S01E112.mkv
-rw-r--r--  1 chuck chuck   274 Oct 31 02:50 Guiding Light - S01E113.mkv
-rw-r--r--  1 chuck chuck   274 Oct 31 02:50 Guiding Light - S01E114.mkv
-rw-r--r--  1 chuck chuck   274 Oct 31 02:50 Guiding Light - S01E115.mkv
-rw-r--r--  1 chuck chuck   274 Oct 31 02:50 Guiding Light - S01E116.mkv
-rw-r--r--  1 chuck chuck   274 Oct 31 02:50 Guiding Light - S01E117.mkv
-rw-r--r--  1 chuck chuck   274 Oct 31 02:50 Guiding Light - S01E118.mkv
-rw-r--r--  1 chuck chuck   274 Oct 31 02:50 Guiding Light - S01E119.mkv
-rw-r--r--  1 chuck chuck   274 Oct 31 02:50 Guiding Light - S01E120.mkv
-rw-r--r--  1 chuck chuck   274 Oct 31 02:50 Guiding Light - S01E121.mkv
-rw-r--r--  1 chuck chuck   274 Oct 31 02:50 Guiding Light - S01E122.mkv
-rw-r--r--  1 chuck chuck   274 Oct 31 02:50 Guiding Light - S01E123.mkv
-rw-r--r--  1 chuck chuck   274 Oct 31 02:50 Guiding Light - S01E124.mkv
-rw-r--r--  1 chuck chuck   274 Oct 31 02:50 Guiding Light - S01E125.mkv
-rw-r--r--  1 chuck chuck   274 Oct 31 02:50 Guiding Light - S01E126.mkv
-rw-r--r--  1 chuck chuck   274 Oct 31 02:50 Guiding Light - S01E127.mkv
-rw-r--r--  1 chuck chuck   274 Oct 31 02:50 Guiding Light - S01E128.mkv
-rw-r--r--  1 chuck chuck   274 Oct 31 02:50 Guiding Light - S01E129.mkv
-rw-r--r--  1 chuck chuck   274 Oct 31 02:50 Guiding Light - S01E130.mkv
-rw-r--r--  1 chuck chuck   274 Oct 31 02:50 Guiding Light - S01E131.mkv
-rw-r--r--  1 chuck chuck   274 Oct 31 02:50 Guiding Light - S01E132.mkv
-rw-r--r--  1 chuck chuck   274 Oct 31 02:50 Guiding Light - S01E133.mkv
-rw-r--r--  1 chuck chuck   274 Oct 31 02:50 Guiding Light - S01E134.mkv
-rw-r--r--  1 chuck chuck   274 Oct 31 02:50 Guiding Light - S01E135.mkv
-rw-r--r--  1 chuck chuck   274 Oct 31 02:50 Guiding Light - S01E136.mkv
-rw-r--r--  1 chuck chuck   274 Oct 31 02:50 Guiding Light - S01E137.mkv
-rw-r--r--  1 chuck chuck   274 Oct 31 02:50 Guiding Light - S01E138.mkv
-rw-r--r--  1 chuck chuck   274 Oct 31 02:50 Guiding Light - S01E139.mkv
-rw-r--r--  1 chuck chuck   274 Oct 31 02:50 Guiding Light - S01E140.mkv
-rw-r--r--  1 chuck chuck   274 Oct 31 02:50 Guiding Light - S01E141.mkv
-rw-r--r--  1 chuck chuck   274 Oct 31 02:50 Guiding Light - S01E142.mkv
-rw-r--r--  1 chuck chuck   274 Oct 31 02:50 Guiding Light - S01E143.mkv
-rw-r--r--  1 chuck chuck   274 Oct 31 02:50 Guiding Light - S01E144.mkv
-rw-r--r--  1 chuck chuck   274 Oct 31 02:50 Guiding Light - S01E145.mkv
-rw-r--r--  1 chuck chuck   274 Oct 31 02:50 Guiding Light - S01E146.mkv
-rw-r--r--  1 chuck chuck   274 Oct 31 02:50 Guiding Light - S01E147.mkv
-rw-r--r--  1 chuck chuck   274 Oct 31 02:50 Guiding Light - S01E148.mkv
-rw-r--r--  1 chuck chuck   274 Oct 31 02:50 Guiding Light - S01E149.mkv
-rw-r--r--  1 chuck chuck   274 Oct 31 02:50 Guiding Light - S01E150.mkv
-rw-r--r--  1 chuck chuck   274 Oct 31 02:50 Guiding Light - S01E151.mkv
-rw-r--r--  1 chuck chuck   274 Oct 31 02:50 Guiding Light - S01E152.mkv
-rw-r--r--  1 chuck chuck   274 Oct 31 02:50 Guiding Light - S01E153.mkv
-rw-r--r--  1 chuck chuck   274 Oct 31 02:50 Guiding Light - S01E154.mkv
-rw-r--r--  1 chuck chuck   274 Oct 31 02:50 Guiding Light - S01E155.mkv
-rw-r--r--  1 chuck chuck   274 Oct 31 02:50 Guiding Light - S01E156.mkv
-rw-r--r--  1 chuck chuck   274 Oct 31 02:50 Guiding Light - S01E157.mkv
-rw-r--r--  1 chuck chuck   274 Oct 31 02:50 Guiding Light - S01E158.mkv
-rw-r--r--  1 chuck chuck   274 Oct 31 02:50 Guiding Light - S01E159.mkv
-rw-r--r--  1 chuck chuck   274 Oct 31 02:50 Guiding Light - S01E160.mkv
-rw-r--r--  1 chuck chuck   274 Oct 31 02:50 Guiding Light - S01E161.mkv
-rw-r--r--  1 chuck chuck   274 Oct 31 02:50 Guiding Light - S01E162.mkv
-rw-r--r--  1 chuck chuck   274 Oct 31 02:50 Guiding Light - S01E163.mkv
-rw-r--r--  1 chuck chuck   274 Oct 31 02:50 Guiding Light - S01E164.mkv
-rw-r--r--  1 chuck chuck   274 Oct 31 02:50 Guiding Light - S01E165.mkv
-rw-r--r--  1 chuck chuck   274 Oct 31 02:50 Guiding Light - S01E166.mkv
-rw-r--r--  1 chuck chuck   274 Oct 31 02:50 Guiding Light - S01E167.mkv
-rw-r--r--  1 chuck chuck   274 Oct 31 02:50 Guiding Light - S01E168.mkv
-rw-r--r--  1 chuck chuck   274 Oct 31 02:50 Guiding Light - S01E169.mkv
-rw-r--r--  1 chuck chuck   274 Oct 31 02:50 Guiding Light - S01E170.mkv
-rw-r--r--  1 chuck chuck   274 Oct 31 02:50 Guiding Light - S01E171.mkv
-rw-r--r--  1 chuck chuck   274 Oct 31 02:50 Guiding Light - S01E172.mkv
-rw-r--r--  1 chuck chuck   274 Oct 31 02:50 Guiding Light - S01E173.mkv
-rw-r--r--  1 chuck chuck   274 Oct 31 02:50 Guiding Light - S01E174.mkv
-rw-r--r--  1 chuck chuck   274 Oct 31 02:50 Guiding Light - S01E175.mkv
-rw-r--r--  1 chuck chuck   274 Oct 31 02:50 Guiding Light - S01E176.mkv
-rw-r--r--  1 chuck chuck   274 Oct 31 02:50 Guiding Light - S01E177.mkv
-rw-r--r--  1 chuck chuck   274 Oct 31 02:50 Guiding Light - S01E178.mkv
-rw-r--r--  1 chuck chuck   274 Oct 31 02:50 Guiding Light - S01E179.mkv
-rw-r--r--  1 chuck chuck   274 Oct 31 02:50 Guiding Light - S01E180.mkv
-rw-r--r--  1 chuck chuck   274 Oct 31 02:50 Guiding Light - S01E181.mkv
-rw-r--r--  1 chuck chuck   274 Oct 31 02:50 Guiding Light - S01E182.mkv
-rw-r--r--  1 chuck chuck   274 Oct 31 02:50 Guiding Light - S01E183.mkv
-rw-r--r--  1 chuck chuck   274 Oct 31 02:50 Guiding Light - S01E184.mkv
-rw-r--r--  1 chuck chuck   274 Oct 31 02:50 Guiding Light - S01E185.mkv
-rw-r--r--  1 chuck chuck   274 Oct 31 02:50 Guiding Light - S01E186.mkv
-rw-r--r--  1 chuck chuck   274 Oct 31 02:50 Guiding Light - S01E187.mkv
-rw-r--r--  1 chuck chuck   274 Oct 31 02:50 Guiding Light - S01E188.mkv
-rw-r--r--  1 chuck chuck   274 Oct 31 02:50 Guiding Light - S01E189.mkv
-rw-r--r--  1 chuck chuck   274 Oct 31 02:50 Guiding Light - S01E190.mkv
-rw-r--r--  1 chuck chuck   274 Oct 31 02:50 Guiding Light - S01E191.mkv
-rw-r--r--  1 chuck chuck   274 Oct 31 02:50 Guiding Light - S01E192.mkv
-rw-r--r--  1 chuck chuck   274 Oct 31 02:50 Guiding Light - S01E193.mkv
-rw-r--r--  1 chuck chuck   274 Oct 31 02:50 Guiding Light - S01E194.mkv
-rw-r--r--  1 chuck chuck   274 Oct 31 02:50 Guiding Light - S01E195.mkv
-rw-r--r--  1 chuck chuck   274 Oct 31 02:50 Guiding Light - S01E196.mkv
-rw-r--r--  1 chuck chuck   274 Oct 31 02:50 Guiding Light - S01E197.mkv
-rw-r--r--  1 chuck chuck   274 Oct 31 02:50 Guiding Light - S01E198.mkv
-rw-r--r--  1 chuck chuck   274 Oct 31 02:50 Guiding Light - S01E199.mkv
-rw-r--r--  1 chuck chuck   274 Oct 31 02:50 Guiding Light - S01E200.mkv
-rw-r--r--  1 chuck chuck   274 Oct 31 02:50 Guiding Light - S01E201.mkv
-rw-r--r--  1 chuck chuck   274 Oct 31 02:50 Guiding Light - S01E202.mkv
-rw-r--r--  1 chuck chuck   274 Oct 31 02:50 Guiding Light - S01E203.mkv
-rw-r--r--  1 chuck chuck   274 Oct 31 02:50 Guiding Light - S01E204.mkv
-rw-r--r--  1 chuck chuck   274 Oct 31 02:50 Guiding Light - S01E205.mkv
-rw-r--r--  1 chuck chuck   274 Oct 31 02:50 Guiding Light - S01E206.mkv
-rw-r--r--  1 chuck chuck   274 Oct 31 02:50 Guiding Light - S01E207.mkv
-rw-r--r--  1 chuck chuck   274 Oct 31 02:50 Guiding Light - S01E208.mkv
-rw-r--r--  1 chuck chuck   274 Oct 31 02:50 Guiding Light - S01E209.mkv
-rw-r--r--  1 chuck chuck   274 Oct 31 02:50 Guiding Light - S01E210.mkv
-rw-r--r--  1 chuck chuck   274 Oct 31 02:50 Guiding Light - S01E211.mkv
-rw-r--r--  1 chuck chuck   274 Oct 31 02:50 Guiding Light - S01E212.mkv
-rw-r--r--  1 chuck chuck   274 Oct 31 02:50 Guiding Light - S01E213.mkv
-rw-r--r--  1 chuck chuck   274 Oct 31 02:50 Guiding Light - S01E214.mkv
-rw-r--r--  1 chuck chuck   274 Oct 31 02:50 Guiding Light - S01E215.mkv
-rw-r--r--  1 chuck chuck   274 Oct 31 02:50 Guiding Light - S01E216.mkv
-rw-r--r--  1 chuck chuck   274 Oct 31 02:50 Guiding Light - S01E217.mkv
-rw-r--r--  1 chuck chuck   274 Oct 31 02:50 Guiding Light - S01E218.mkv
-rw-r--r--  1 chuck chuck   274 Oct 31 02:50 Guiding Light - S01E219.mkv
-rw-r--r--  1 chuck chuck   274 Oct 31 02:50 Guiding Light - S01E220.mkv
-rw-r--r--  1 chuck chuck   274 Oct 31 02:50 Guiding Light - S01E221.mkv
-rw-r--r--  1 chuck chuck   274 Oct 31 02:50 Guiding Light - S01E222.mkv
-rw-r--r--  1 chuck chuck   274 Oct 31 02:50 Guiding Light - S01E223.mkv
-rw-r--r--  1 chuck chuck   274 Oct 31 02:50 Guiding Light - S01E224.mkv
-rw-r--r--  1 chuck chuck   274 Oct 31 02:50 Guiding Light - S01E225.mkv
-rw-r--r--  1 chuck chuck   274 Oct 31 02:50 Guiding Light - S01E226.mkv
-rw-r--r--  1 chuck chuck   274 Oct 31 02:50 Guiding Light - S01E227.mkv
-rw-r--r--  1 chuck chuck   274 Oct 31 02:50 Guiding Light - S01E228.mkv
-rw-r--r--  1 chuck chuck   274 Oct 31 02:50 Guiding Light - S01E229.mkv
-rw-r--r--  1 chuck chuck   274 Oct 31 02:50 Guiding Light - S01E230.mkv
-rw-r--r--  1 chuck chuck   274 Oct 31 02:50 Guiding Light - S01E231.mkv
-rw-r--r--  1 chuck chuck   274 Oct 31 02:50 Guiding Light - S01E232.mkv
-rw-r--r--  1 chuck chuck   274 Oct 31 02:50 Guiding Light - S01E233.mkv
-rw-r--r--  1 chuck chuck   274 Oct 31 02:50 Guiding Light - S01E234.mkv
-rw-r--r--  1 chuck chuck   274 Oct 31 02:50 Guiding Light - S01E235.mkv
-rw-r--r--  1 chuck chuck   274 Oct 31 02:50 Guiding Light - S01E236.mkv
-rw-r--r--  1 chuck chuck   274 Oct 31 02:50 Guiding Light - S01E237.mkv
-rw-r--r--  1 chuck chuck   274 Oct 31 02:50 Guiding Light - S01E238.mkv
-rw-r--r--  1 chuck chuck   274 Oct 31 02:50 Guiding Light - S01E239.mkv
-rw-r--r--  1 chuck chuck   274 Oct 31 02:50 Guiding Light - S01E240.mkv
-rw-r--r--  1 chuck chuck   274 Oct 31 02:50 Guiding Light - S01E241.mkv
-rw-r--r--  1 chuck chuck   274 Oct 31 02:50 Guiding Light - S01E242.mkv
-rw-r--r--  1 chuck chuck   274 Oct 31 02:50 Guiding Light - S01E243.mkv
-rw-r--r--  1 chuck chuck   274 Oct 31 02:50 Guiding Light - S01E244.mkv
-rw-r--r--  1 chuck chuck   274 Oct 31 02:50 Guiding Light - S01E245.mkv
-rw-r--r--  1 chuck chuck   274 Oct 31 02:50 Guiding Light - S01E246.mkv
-rw-r--r--  1 chuck chuck   274 Oct 31 02:50 Guiding Light - S01E247.mkv
-rw-r--r--  1 chuck chuck   274 Oct 31 02:50 Guiding Light - S01E248.mkv
-rw-r--r--  1 chuck chuck   274 Oct 31 02:50 Guiding Light - S01E249.mkv
-rw-r--r--  1 chuck chuck   274 Oct 31 02:50 Guiding Light - S01E250.mkv
-rw-r--r--  1 chuck chuck   274 Oct 31 02:50 Guiding Light - S01E251.mkv
-rw-r--r--  1 chuck chuck   274 Oct 31 02:50 Guiding Light - S01E252.mkv
-rw-r--r--  1 chuck chuck   274 Oct 31 02:50 Guiding Light - S01E253.mkv
-rw-r--r--  1 chuck chuck   274 Oct 31 02:50 Guiding Light - S01E254.mkv
[chuck@lizum tv.2048]$ 

While it’s still loading it up (14000+ episodes takes some time),
Here’s where it’s at.

Now that it’s all done scanning, even though the metadata isn’t fully populated, lets verify the episode count.

Nothing missed.

Where does this leave you?

Possibilities are:

  1. Bitten by the naming
  2. Using “Plex Series Scanner” instead of “Plex Series” (the default)
  3. Damaged Database

Thanks, will come in handy! (it already has) :slight_smile:

Yes, I want, and on top of something already big :smiley:

Excellent, I have just recreated that result in my Incoming library also. There were no problems at all getting all the episodes right, I get the same result that you do. And this still precisely what I am used to see for a small library, no problems at all - a library with 14k items is still a small library in my world.

But, when I move it to the final library, I see the same pattern as I use to see - some episodes are skipped, in this case 4 episodes in each season. And again, with this curious similar distance between the skipped episode numbers.

This is the log for S58 and S57 (the first two seasons scanned), precisely episodes E42, E85, E162 and E205 were skipped for both seasons. And precisely the same episodes are skipped for all the other seasons as well. Consistently 4 episodes are skipped, and always the same exact episode numbers - no exceptions.

Season 58: E42, E85, E162, E205 skipped

Oct 31, 2023 08:51:53.411 [140670833421112] VERBOSE - Adding file for scanner: "/plex/series/Guiding Light (1952)/Season 58/Guiding Light - S58E001.mkv"
...
Oct 31, 2023 08:51:53.412 [140670833421112] VERBOSE - Adding file for scanner: "/plex/series/Guiding Light (1952)/Season 58/Guiding Light - S58E041.mkv"
E42 skipped
Oct 31, 2023 08:51:53.412 [140670833421112] VERBOSE - Adding file for scanner: "/plex/series/Guiding Light (1952)/Season 58/Guiding Light - S58E043.mkv"
...
Oct 31, 2023 08:51:53.413 [140670833421112] VERBOSE - Adding file for scanner: "/plex/series/Guiding Light (1952)/Season 58/Guiding Light - S58E084.mkv"
E85 skipped
Oct 31, 2023 08:51:53.413 [140670833421112] VERBOSE - Adding file for scanner: "/plex/series/Guiding Light (1952)/Season 58/Guiding Light - S58E086.mkv"
...
Oct 31, 2023 08:51:53.425 [140670833421112] VERBOSE - Adding file for scanner: "/plex/series/Guiding Light (1952)/Season 58/Guiding Light - S58E161.mkv"
E162 skipped
Oct 31, 2023 08:51:53.425 [140670833421112] VERBOSE - Adding file for scanner: "/plex/series/Guiding Light (1952)/Season 58/Guiding Light - S58E163.mkv"
...
Oct 31, 2023 08:51:53.425 [140670833421112] VERBOSE - Adding file for scanner: "/plex/series/Guiding Light (1952)/Season 58/Guiding Light - S58E204.mkv"
E205 skipped
Oct 31, 2023 08:51:53.426 [140670833421112] VERBOSE - Adding file for scanner: "/plex/series/Guiding Light (1952)/Season 58/Guiding Light - S58E206.mkv"
...
Oct 31, 2023 08:51:53.428 [140670833421112] VERBOSE - Adding file for scanner: "/plex/series/Guiding Light (1952)/Season 58/Guiding Light - S58E254.mkv"

Season 57: E42, E85, E162, E205 skipped (Precisely the same pattern as for S58)

Oct 31, 2023 08:51:54.086 [140670833421112] VERBOSE - Adding file for scanner: "/plex/series/Guiding Light (1952)/Season 57/Guiding Light - S57E001.mkv"
...
Oct 31, 2023 08:51:54.092 [140670833421112] VERBOSE - Adding file for scanner: "/plex/series/Guiding Light (1952)/Season 57/Guiding Light - S57E041.mkv"
E42 skipped
Oct 31, 2023 08:51:54.092 [140670833421112] VERBOSE - Adding file for scanner: "/plex/series/Guiding Light (1952)/Season 57/Guiding Light - S57E043.mkv"
...
Oct 31, 2023 08:51:54.098 [140670833421112] VERBOSE - Adding file for scanner: "/plex/series/Guiding Light (1952)/Season 57/Guiding Light - S57E084.mkv"
E85 skipped
Oct 31, 2023 08:51:54.098 [140670833421112] VERBOSE - Adding file for scanner: "/plex/series/Guiding Light (1952)/Season 57/Guiding Light - S57E086.mkv"
...
Oct 31, 2023 08:51:54.120 [140670833421112] VERBOSE - Adding file for scanner: "/plex/series/Guiding Light (1952)/Season 57/Guiding Light - S57E161.mkv"
E162 skipped
Oct 31, 2023 08:51:54.120 [140670833421112] VERBOSE - Adding file for scanner: "/plex/series/Guiding Light (1952)/Season 57/Guiding Light - S57E163.mkv"
...
Oct 31, 2023 08:51:54.128 [140670833421112] VERBOSE - Adding file for scanner: "/plex/series/Guiding Light (1952)/Season 57/Guiding Light - S57E204.mkv"
E205 skipped
Oct 31, 2023 08:51:54.128 [140670833421112] VERBOSE - Adding file for scanner: "/plex/series/Guiding Light (1952)/Season 57/Guiding Light - S57E206.mkv"
...
Oct 31, 2023 08:51:54.135 [140670833421112] VERBOSE - Adding file for scanner: "/plex/series/Guiding Light (1952)/Season 57/Guiding Light - S57E254.mkv"

So instead of each season having 254 episodes as it should, all the seasons end up with only 250 episodes.

Yes, still a very dynamic list, looking forward to seeing it end up at just the final 1 possibility :smiley:

  1. Implementation bug in the scanner ( “MapReduce” / Divide and Conquer-related)
  2. Very large library-specific bug
  3. “Library->Scan my library automatically” / “Library → Run a partial scan when changes are detected” settings-related bug, with the settings disabled.

I tried to add the Guiding Light series to another one of my libraries also, to a library that is considerably smaller.

And this time another, but still as consistent, pattern showed up. Now the episodes E42, E85, E128, E178, E221 were consistently skipped across all seasons.

S55: E42, E85, E128, E178, E221 skipped

Oct 31, 2023 09:29:35.691 [140670833421112] VERBOSE - Adding file for scanner: "/plex/music-videos-series/Guiding Light (1952)/Season 55/Guiding Light - S55E001.mkv"
...
Oct 31, 2023 09:29:35.693 [140670833421112] VERBOSE - Adding file for scanner: "/plex/music-videos-series/Guiding Light (1952)/Season 55/Guiding Light - S55E041.mkv"
E42 skipped
Oct 31, 2023 09:29:35.694 [140670833421112] VERBOSE - Adding file for scanner: "/plex/music-videos-series/Guiding Light (1952)/Season 55/Guiding Light - S55E043.mkv"
...
Oct 31, 2023 09:29:35.695 [140670833421112] VERBOSE - Adding file for scanner: "/plex/music-videos-series/Guiding Light (1952)/Season 55/Guiding Light - S55E084.mkv"
E85 skipped
Oct 31, 2023 09:29:35.696 [140670833421112] VERBOSE - Adding file for scanner: "/plex/music-videos-series/Guiding Light (1952)/Season 55/Guiding Light - S55E086.mkv"
...
Oct 31, 2023 09:29:35.698 [140670833421112] VERBOSE - Adding file for scanner: "/plex/music-videos-series/Guiding Light (1952)/Season 55/Guiding Light - S55E127.mkv"
E128 skipped
Oct 31, 2023 09:29:35.698 [140670833421112] VERBOSE - Adding file for scanner: "/plex/music-videos-series/Guiding Light (1952)/Season 55/Guiding Light - S55E129.mkv"
...
Oct 31, 2023 09:29:35.712 [140670833421112] VERBOSE - Adding file for scanner: "/plex/music-videos-series/Guiding Light (1952)/Season 55/Guiding Light - S55E177.mkv"
E178 skipped
Oct 31, 2023 09:29:35.713 [140670833421112] VERBOSE - Adding file for scanner: "/plex/music-videos-series/Guiding Light (1952)/Season 55/Guiding Light - S55E179.mkv"
...
Oct 31, 2023 09:29:35.714 [140670833421112] VERBOSE - Adding file for scanner: "/plex/music-videos-series/Guiding Light (1952)/Season 55/Guiding Light - S55E220.mkv"
E221 skipped
Oct 31, 2023 09:29:35.715 [140670833421112] VERBOSE - Adding file for scanner: "/plex/music-videos-series/Guiding Light (1952)/Season 55/Guiding Light - S55E222.mkv"
...
Oct 31, 2023 09:29:35.715 [140670833421112] VERBOSE - Adding file for scanner: "/plex/music-videos-series/Guiding Light (1952)/Season 55/Guiding Light - S55E254.mkv"

So, each season now ended up with 249 episodes, instead of with 250 each as in the larger library.

As previously asked for without having normal debug server logs (verbose disabled) and a plex dance of your issue we are unable to reproduce your issue. I have a large library and am not experiencing your reported issue. The key here is that your log excerpts may be showing secondary issues to a primary cause that isn’t in your excerpts.

EDIT, I am running the exact same make-series and I am getting 254 episodes per season (its still ingesting them atm) I did have to manually match the show.

You have corruption somewhere.

Let’s review & repeat

  1. Create a new directory for testing
  2. EDIT the target directory for make-series to point to the new directory.
  3. Create a new library section pointing to the new directory
    – In the Advanced Tab



Now

  1. make-series Flipper 3 20 (only 20 episodes but good enough)

  2. Observe quick match and all 3 seasons fully populate

  3. Go into Season 1 and observe PMS has pulled down screenshots even though you don’t have a legitimate file.

Thanks, here you go - let’s see if something gives :slight_smile:

  • 06:44 : Season 01 with 254 episodes of guiding light added to file system (/plex/music-videos-series-lifesaver/Guiding Light (1952)/Season 01)
  • 06:45 : Library scan started, finds 250 of 254 items (E01, E92, E135, E212 is skipped).
  • 06:50 : Plex backs up database
  • 06:58 : Database backup done
  • 06:59 : Starting The Plex Dance TM
  • 06:59 : /plex/music-videos-series-lifesaver/Guiding Light (1952)/Season 01 removed from file system
  • 06:59 : Library scan started
  • 07:01 : Episode deletion progresses, ~2 seconds/episode, lots of the usual “Held transaction for too long” messages
  • 07:04 : Scheduled scan of all libraries started, manually stopped
  • 07:05 : Trash emptied
  • 07:06 : Bundle clean started
  • 07:07 : Bundle clean completed
  • 07:07 : /plex/music-videos-series-lifesaver/Guiding Light (1952)/Season 01 added back into file system
  • 07:07 : Library scan started
  • 07:09 : Library scan completed, Guiding Light matched, found 250 of 254 items (E01, E92, E135, E212 is skipped - same result as the 06:45 scan)
  • 07:11 : Logs downloaded

Plex Media Server Logs_2023-11-01_07-11-43.zip (1.2 MB)

I am not seeing any of the obvious causes.

Can you please remove Guiding Light outside of your current library, scan, and empty trash (Trying to remove any references to these files before the next step) Then create /plex/demo_issue and move guiding light into that folder. Create a new Plex Library Using the Plex TV scanner and the Plex series agent and just add /plex/demo_issue to it.

Because you were working in an existing library with naming issues my spider sense is telling me that its confusing the file names and marking them as duplicates.

This ensures that we have a fresh library, and a fresh scan.

Once thats done can you post the server logs again?

Change the TV library filer to episodes instead of TV Shows. Then look for duplicates

Screenshot (1558)

Ok, here goes - this time 5 episodes (E17, E92, E135, E178, E228) were skipped.

Plex Media Server Logs_2023-11-01_22-55-53.zip (739.9 KB)

Thanks - all looks peaceful and quiet to me.

I hope for the Scanner debug to be extended soon, so it will produce some output regarding why it consistently skips precisely the same files.

@ChuckPa Any thoughts here? the scanner just isnt seeing random files.

I don’t trust the database integrity nor am I’m certain of the host/networking.
There are a lot of variables in flight and I’ve never seen this type of random failure without the host or network having problems.

Regarding the databases, I’m not speaking to ‘integrity_check’ structure but actual data in the records.

That’s the easiest to prove out.

  1. Sign out of Plex/web and restart the browser
  2. Stop PMS
  3. Rename Library to Library.keep
  4. Start PMS and let it create a new empty server instance
  5. Create a new server instance with “TEST SERVER” as the name to avoid conflict with the main
  6. Create an empty directory solely for testing. Putting test files in existing structures does not provide any clarity
  7. Create a make-series Flipper (in this new TV library directory)
  8. Create a new TV section pointing ONLY to where “Flipper” is.
    – Use ALL defaults for the library section
    – Except select “TheTVDB” episode ordering.
  9. It will create quickly.
  10. When done, confirm season 1 has the same metadata as I’ve presented.

With this established, start creating a few more test cases.
DO NOT create a 58 season 254 episode behemoth for Guiding Light.
Pick something more reasonable like “Law & Order” 7 seasons 20 episodes

Law & Order should come up with TheTVDB episode matching and metadata

Thanks! As a pristine server, everything still works absolutely fine.

I am attaching the log for the initial Flipper scan, and I was unable to provoke any issues with skipped episodes as I imported some more shows.

Plex Media Server Logs_2023-11-02_08-27-48.zip (224.7 KB)

Just for grins can you try Guiding light again? I suspect that Chuck may want a copy of your original database for debugging purposes.

Ha ha, worth a shot - I added S01 of Guiding Light to another smaller library, and again E42, E85, E128, E178, E221 was skipped.

That can be arranged :slight_smile:

Have you tried making all the names have three digits for the Episode? Like

Guiding Light - S01E001

Something rumbled in my old mind about series with more than 99 episodes but I can’t be sure.

Good luck,

Chris

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