Meta data worked for a particular show, now it doesn't.

I recently installed Plex to give it a try out, and was really impressed with how it dealt with my digital library.
Deciding to get serious, I thought it best to plug my external hard drives into my router as mapped network drives, rather than always having to have them plugged into my laptop, and start over.
I figured the easiest way would be just deleting my Plex library, and re-adding the folders (and extra ones) from their new locations. This worked out fine except for one particular TV show: King of the Hill.
When I first added the files for the try-out the metadata worked perfectly. It had all the season posters, episode titles, background, even the theme tune.
Now that I’ve re-mapped it the exact same files will no longer be matched by Plex. Even when I click ‘Fix Match’ and choose the correct listing, it says ‘downloading metadata for King of the Hill’ but it never does. There’s no poster, and all the episode titles just say ‘Episode 01’ etc.
Can anyone explain why this is? I’ve not changed anything in regards to the filenames, they’re located on the exact same external drive in the same folder (although now re-mapped , of course). Everything is virtually the same but it just won’t give me the metadata anymore :neutral:

TV shows don’t like additional folders.
Verify that you have pointed your Plex library to the right “level” in the folder hierarchy.

/TV Shows <-- point Plex here - not below nor above it
   /Grey's Anatomy
      /Season 01
         Grey's Anatomy - s01e01.avi
         Grey's Anatomy - s01e02 - The First Cut is the Deepest.avi
         Grey's Anatomy - s01e03.mp4
      /Season 02
         Grey's Anatomy - s02e01.avi
         Grey's Anatomy - s02e02.mkv
         Grey's Anatomy - s02e03.m4v

https://support.plex.tv/hc/en-us/articles/200220687-Naming-Series-Season-Based-TV-Shows

That is exactly the folder formatting I’m using for King of the Hill, and every other show. But it’s only KOTH that doesn’t match metadata (even though it did before). It makes no sense.

Are any King of the Hills MP4/M4V Files?

If so…

You may have embedded metadata in the Title Field of MP4/M4V files. Plex will read this info and prefer it over a perfect file name/structure (we’ll have to take your word for it I guess), but you can combat that situation by moving Local Media Assets to the bottom of every agent list you can find. All tabs in Shows and Movies here:
https://support.plex.tv/hc/en-us/articles/200241558-Agents
Just drag LMA to the bottom of the list and drop it. If you do have embedded metadata this will cure the issue, if you don’t it won’t matter. LMA will do what it has to from the bottom.

Renaming/restructuring is best performed OUTSIDE the library and you’ll need to write a new bundle for the show so The Plex Dance® was invented:

The Plex Dance®:

  1. remove show from library - all of it.
  2. update library
  3. empty trash
  4. clean bundles
    https://support.plex.tv/hc/en-us/articles/200392106-Library-Actions <— update library, empty trash, clean bundles
  5. bring names and structures into compliance, fiddle with LMA, etc.
  6. replace corrected show into library
  7. update library

All Steps. In Order. No Shortcuts.

If you’ve fiddled with King at all while it’s been in the library you may have fiddled up a bogus bundle - Plex Dance the thing after doing the above if necessary and that’ll probably fix it.

If not - Log Files Please:
https://support.plex.tv/hc/en-us/articles/200250417-Plex-Media-Server-Log-Files
Drag zip file to message window and drop it.

No, all the King of the Hill files are .mkv
I’ll give the Plex Dance a try anyway.