SOLVED: Seasons and episodes display the wrong show name

[Efficient_Good_5784]

I can edit the season name just fine. Maybe I need to be more specific.

1. On the TV Shows library, I click "Dimension 20". This takes me to the page for the show as a whole, and the top (the show title) reads "Dimension 20". Both of these used to say "Dimension W", but I edited the show metadata, and it fixed it only on these pages.
   
2. On that page, I click on season 19 (season title "Mentopolis"), which takes me to a new page for the season. At the top, it reads "Dimension W" and below that, "Mentopolis". When I go to edit metadata for the season, I can change the name of the season, but not the name of the show. My guess is that it's supposed to be inherited from the show metadata.
   
3. On that page, I select a specific episode, and the same problem occurs. "Dimension W" followed by "Mentopolis - 1. The Big Guy". Like the season, editing the episode metadata does not allow me to edit the show name, only the episode name.
   

So, the name must be stored somewhere, like in a cache or something. But it seems inaccessible to me.

There's something wrong here. You should be able to edit the name of season.
Could you provide a screenshot of the affected items? It shouldn't be working like this.

There should be a "Title" and "Sort Title" field in the season metadata that are editable.
Note that the "Title" section is the only one that appears on the GUI as the season name.

Until now, I have had no reason to split up anime and non-anime. All tv shows are in the same folder. Are you saying it's expected that one would, and that plugins rely on that expectation?

I would follow what @TheDreadPirate stated above in the previous post.

In the past, I've had the AniDB and AniList plugins enabled (as top priority too) on a movie library for non-anime movies. On multiple movies, it would cause their metadata to be incorrectly linked to anime titles.
I obviously fixed the issue by disabling the anime plugins for that library.

It has something to do with the anime plugins getting somewhat of a match to some anime title. It's enough of a match, so it applies it to them.
To Jellyfin, there's no distinction between anime and non-anime titles, they're all just videos to the eyes of a computer. Jellyfin will get the closest match of the highest priority metadata source enabled for that library.
You could try lowering the priority of the anime plugins to be dead last to see if it helps a bit.