SOLVED: Seemingly Random Folders Disappear

[grunwalski]

I guess this happened after the last update.
I recognized some stuff missing from jellyfin. No data got deleted. its just not in jellyfin anymore. log has got much of:

Code:

Emby.Server.Implementations.Library.LibraryManager: Removing item

• Jellyfin Version 10.9.8
  
• lscr.io/linuxserver/jellyfin:latest (via Docker on Synology 923+)
  

There seems to be "removed single episodes" a lot of specials i never had. but also some complete season folders. Seasons I watched episodes from.

https://pastecode.io/s/41o3h1uu

I found users with deleted files and completely empty libraries, but havent found anything on "missing some stuff, thats there and that worked before". 

I am thankful for any suggestion on what to do.

[TheDreadPirate]

When items are removed from a library at this scale it usually means one of a few things: the media path changed, a path became inaccessible for some reason (unmounted, permission change), a misconfiguration, or Jellyfin started before a drive/network share was mounted.

Can you share your full log via pastebin? The raw view in pastebin is a lot easier to read.

[grunwalski]

thanks for replying so fast

I dont know what should have changed or have clue while all these episodes i never had are in the log.
paths didnt change nor did i change the config.

but while i check again for permissions:
i forgot to mention, the removing part happens over and over again. i only pasted one cycle. but it keeps happening. does that help?

[TheDreadPirate]

Does it only happen when you restart Jellyfin? How are the libraries accessed by Jellyfin? Are you mounting volumes directly from the NAS into the container? Or as SMB shares?

[grunwalski]

here an unformatted log.
https://pastecode.io/s/1q96jrxx

the folders are mounted in the image. everything running on the same machine.
it happens on every library scan i think.
setup did work for a few month until recently i noticed the disappearing of stuff.

[theguymadmax]

Do you have missing episode fetcher enabled in your library? The last updated "fixed" an issue where virtual seasons where being created, relating to that setting. Also, what is the structure for your TV library.

[theguymadmax]

From your logs, I see that you have a particular naming structure:
Series Name Year [tvdbid-id]
---Show Name Season xx
------filename

Without testing, i would guess that might be an issue. You should follow Jellyfin's naming scheme.

Series Name (Year)
--Season xx
-----Series Name A S00E01.mkv

[grunwalski]

That's it! NEVER would have found it. Thanks.

Just unchecked "Missing Episode Fetcher" in the "Metadata Services" of my TV show library.


btw: what is a virtual seasons?

[theguymadmax]

btw: what is a virtual seasons?

In the manner I wrote, it was related to this bug, where seasons were created in your library for items you did not have.

[Karmalakas]

I think I might have a very similar (if not the same) issue.

One abstract example - there are two folders added to library with exact same structure. Each folder contains some subfolders and then media items. One folder is fully scanned and all is shown in Jellyfin, but the other is missing some subfolders. If I edit a file name of some items and rescan library, these items appear. But that requires going through each folder and touching files.

Another very concrete example - I have a Lithuanian movie with Lithuanian file name. Automatically it gets identified as some Polish movie with slightly similar name when translated to English. When I try to identify manually and search for the Lithuanian name, this Polish movie is suggested first and the correct one is second (both showing English titles). I select the second one, click OK, and movie completely disappears from Jellyfin. The only way I found to get it back - go to filesystem to the movie folder and delete the movie.nfo file and rescan the library. Then again it gets wrong ID, but at least it shows up...

I started playing with Jellyfin just a few days ago, so don't know if this was the same before
Compared to Plex, Jellyfin is missing almost 200 items out of ~1k

Currently on v10.9.9 on TrueNAS SCALE Dragonfish-24.04.2