Metadata Majorly Screwed Up

I don’t know what’s going on, but almost 50% of my TV media is no longer automatically matching. Plex REQUIRED I upgrade my Library this weekend when I first noticed this problem, and Poof! It went from a poor 70-80% match rate to now less than 50% (after upgrading the Library)! Worse, when I MANUALLY attempt a match, the first suggested is the correct one!

What the heck? I was 100% matched, with maybe 5% requiring manual, last Saturday (July 13th)

I don’t know if this is contributing to additional issues, but I’m dealing with AUDIO problems AGAIN! That’s what led to a complete factory reset of my NAS, which along with a deep delete of the Roku device Plex connection, did fix everything (until last week). I’m back to screeching audio, or audio which requires significant volume increases (50-100% higher volume).

Double what the heck?!?

Everything was working PERFECTLY last week! I haven’t updated any settings or PMS Server packages - in fact, I’m terrified to do so!

Now, here is something weird. I manually matched the the missing matched for my current 5 shows. After doing that, the audio issues (screaching, volume) disappeared for those 5 shows.

Very odd :frowning:

If your media directories are not structured the way PMS likes, this would be a result.
If you chose a legacy scanning agent, this could also happen.

Though it may have worked in the past, we might as well check what’s up now.
Please follow the website article
https://support.plex.tv/articles/naming-and-organizing-your-tv-show-files/

When I follow that and Plex sees my .mkv files, matching works 99% of the time.
But I do have my TV Shows library Edit → Advanced set so that I’m using the modern Plex provided agents. That means I have chosen:

Scanner - Plex TV Series
Agent - Plex Series
Episode Ordering - TMDB

Unfortunately TMDB is sparse. So for certain series, I switch that last one to TVDB
Once you make changes to naming / agents, you will want to right click the TV library, Scan Library Files and Refresh All Metadata

I use TVDB without much ado

I’ve tried TMDB and TVDB in the past but didn’t notice a big difference – mainly an occasional episode order flip. Luckily, my media naming conventions were specifically designed for Plex as I hadn’t started ripping until I’d chosen and installed Plex; that was a huge help avoiding many of the metadata sync issues others had mentioned at the time. Plus, my media is static – I ripped everything I had 6 or 7 years ago (?) when I set Plex up. I’m not adding new media as I enjoy watching what I’ve already got (and none of the new drek is really worth watching the first time).

I did add the Premier Year to my TV Series folder name last month. Previously, Plex didn’t care. Last month I noticed a large number of match errors where related to Plex matching to European or (newer) “remake” versions of a TV series. Assigning the premier year to the series folder name appears to have all but 1 of those.

I’ve also setup my customized media naming to mimic standardized movie and TV show naming conventions. Once I manually assigned the information, Plex would leave it alone - at least, until recently.

Plex has also decided to start combining similarly named files into one Plex entry. It has done that in the past, but I’d only encountered 4 or 5 instances ever. Allong with the major increase in match failures last week, I ended up with 27 groupings (so far) I’ve had to manually split. There are so many issues with that it’s not worth delving into here. IMO automatically combining media is such a rare necessity, it should be a manual option - not automatic (like Collections).

As I’m housebound and a major aspect of my day-to-day life is watching (and re-watching) my Home Theater media, disruptions like the last couple of months have a major impact. Prior to my server faux pas several months ago, Plex was a constant, reliable, and flawless platform. Not so since then.

I’ve come to the conclusion I have to consider ignoring all future server releases for fear performance will degrade even further. I can deal with missing posters - that used to be a simple one time fix, and I don’t really care if the metadata itself is incorrect - as long as the Poster and the title are correct. Meta mistakes now are a problem because of the erroneous renaming in the Plex entry making it difficult, if not impossible, to match an Plex mistake with the original file.

However, I cannot deal with audio issues. I’d thought I had resolved that after my NAS restore by doing the “deep” delete of the Plex app from my Roku account. I discovered this week that may not have been the issue (at least, not entirely); apparently, a match failure can also cause audio issues. I discovered that accidently when I forced a match on a series, and the audio issues were instantly corrected. After the NAS restore, I had a nearly 100% media match and everything (audio and video) was peachy, so the audio issue was NOT there until the match failure increased last weekend.

Last weekend my match rate plummeted to less than 50% overnight. PM, I was blissfully watching yet another episode of The Closer and Hogan’s Heroes. Saturday morning, The Closer was screeching at me, and Hogan’s Heroes would only play at 200% volume (40 rather than 20) – the same issue as pre-NAS restore. The only thing I did was between was to upgrade the Library (Plex wouldn’t Scan without upgrading the Library) and I upgraded to the latest Plex server (1.40.4.8555). The minute it started to scan, it actually “unmatched” a large percentage of the “good” matches, combined 30-40 files into the 27 aforementioned “combined” groups, and miss-matched a large percentage of those remaining.

I can’t handle having the manually correcting increasing Plex match problems every single time it Scans, especially as it no longer leaves currently assigned matches alone. Which means I’m going to have to consider downloading metadata locally to avoid Plex removing or replacing a good match with bad info.

No need to respond. I’ve manually assigned matches to 35% of the unmatched non-custom media so far and hope to have the rest done by the end of the week. I’ve turned off all the auto-syncing settings I can find; hopefully that will allow Plex to not automatic update anything. Fingers crossed 

I’m sorry, I really meant to make the last response short and brief - I usually do :frowning: I love Plex and it’s a major, enjoyable, part of my life. That’s part of the frustration :frowning: My fingers runneth over - and on, and on, and on. I didn’t mean it to be a b*ch fest, more of a “Yikes! How do I fix.” That’s not how it ended up.

It might be worth deleting this thread completely (I can if you can’t), except for support to note that match failures are apparently causing audio issues during playback, at least on the Roku. I don’t want to do that unilaterally as I can’t remember if that’s a community prohibition or not.

Again, I’m sorry for being such a downer.

Don’t give it a second thought. We’re nerds.

So matching, audio and poster problems. hmmm. My suggestion if you see this, is that we do more investigation to determine if your PMS install is still healthy. I’m beginning to suspect your database or cache of codecs is wonky. The easiest thing to do is a clean boot and inspect the main log. What I do is:

  1. power cycle the PMS machine and note the time of day.
  2. start PMS and wait 3min for it to fully start and go somewhat idle.
  3. download logs
  4. open the Plex Media Server.log file that was saved in (3) and obfuscate any personal data like username / email / public IP address stuff like that.
  5. zip up the log and drop it into your reply here.

While you’re waiting for someone to comment, you can check that log yourself for ERROR or SQLITE messages. If the database is malformed or corrupt, you should try to repair it with the official Plex DBRepair utility.