Plex switches agent from TMDB to TVDB for a show

Server Version#: 1.20.1.3252
Player Version#: 4.60.2

Hi there. My TV library uses TMDB as the agent, and recently I’ve noticed that a particular show switches to TVDB, and when I switch it back to TMDB, it seems like it stays on TMDB till the next episode from Sonarr, and then it switches it to TVDB. Any ideas on how I can go about fixing this? It only seems to happen for one show.

Do you also see this issue on the latest public release (v1.23.3.4707)?
From what I remember you might need to restart the container to obtain those updates.

I’ve not tried that. I’ll try updating and see!

I’ve just updated, and the show is still on TVDB. Should I fix match and choose TMDB instead and then wait to see what happens after the next episode?

Also, now the options under Manage Library - Edit - Advanced - Scanner is Plex Series Scanner and Agent is TMDB. It’s okay to stick with that if I wish to use TMDB as the agent, right? There is an option under Scanner for Plex TV Series.

Sounds like the logical next step.

I chose Fix Match to switch to TMDB, and the show stayed on TMDB till today, when the new episode was imported by Sonarr and the agent has switched to TVDB. It seems like the Plex Series Scanner under the Scanner option is using TVDB and overriding the TMDB option chosen under Agent.

Can you please post your server logs? I don’t think I’ve ever seen an item that had already been matched to switch the agent/matching like this. The only halfway reasonable scenario I can currently imagine to explain this would be that Plex completely loses those files as part of an automatic scan (maybe because Sonarr or some other app touches the existing files) and subsequently adds them back using the library default agent. → you can rule that scenario out by verifying you have automatically emptying the trash within Plex disabled (under Settings > [Server Name] > Library); I believe I’ve been reading about a recommendation not to let 3rd party apps directly download/process files inside the folders associated with Plex to avoid hiccups where Scans are triggered while those apps are still in the middle of processing a file.

Firstly, I would like to thank you, as owing to your reply I was able to figure out the problem. I took a look at the server logs at the time the episode was imported, and I was able to see that it matched to TMDB initially, but later matched it to TVDB, due to a 3rd party app sending a request to do so. I apologize as I should have looked at the logs for the 3rd party app first and I would have realized it was also reflected there. Thank you once again for the help and I truly appreciate it!

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