The media library needs to add a switch to disable the default option of merging

[素兮若雪]

Prohibit automatic merging of episodes from different seasons to ensure they are in the corresponding season. It is very helpful in solving the problem of metadata not classifying seasons.
for example https://www.themoviedb.org/tv/223911 It did not divide the series into different seasons. But in reality, it should be divided into Season 01 and Season 02. By manually intervening, Season 01 and Season 02 were created and placed in corresponding files, while the file names were always S01 * *, ensuring that all episodes could be scraped to metadata and also ensuring the correct classification of Seasons.

But there is a problem, which is that after scraping the metadata, the files in Season 02 are named S01 * *, which leads to errors in the web page, The episodes from Season 02 were added to Season 01, resulting in Season 01 containing episodes from both Season 01 and Season 02, while the episodes from Season 02 were correctly presented on the web.No longer following the structure of the local Season directory.

After adding the option to turn off automatic merging, the metadata of the series is still obtained based on the file name, but the season follows the classification of the local directory

Local directory structure:

XXXX (2015)
    Season 01
        S01E01 - xxxx.mp4
        S01E02 - xxxx.mp4
    Season 02
        S01E03 - xxxx.mp4💡
        S01E04 - xxxx.mp4💡

The structure presented by Jellyfin:

XXXX (2015)
    Season 01
        S01E01 - xxxx.mp4
        S01E02 - xxxx.mp4
        S01E03 - xxxx.mp4❌
        S01E04 - xxxx.mp4❌
    Season 02
        S01E03 - xxxx.mp4
        S01E04 - xxxx.mp4

[Efficient_Good_5784]

What you're requesting is an unsupported use case. Your folder and filename naming needs to follow the metadata provider's setup if you want automatic metadata to work fine. So you need to rename all files to be from season 1 and put them in a single "season 1" folder as TMDB sorts them all with absolute numbering.

You do have the option to manually add metadata yourself. Just physically rename all the files to have your desired season number and edit the metadata by hand in Jellyfin. Just make sure to lock the metadata after so you don't lose your changes. And keep in mind that locking only applies to metadata fields that are already filled out. Non-filled metadata ignores the lock setting.

[素兮若雪]

Metadata providers are not always correct, and are more likely to be lazy. In order to comply with the metadata provider, the episodes in Season 02 are named S01xx to obtain the relevant metadata of the episodes. However, Jellyfin went beyond the boundaries and scanned Season 02 and arbitrarily classified S01xx as Season 01, instead of isolating Season 02 and Season 01? Obviously, the same episode cannot be used by two seasons at the same time (except Specail), and should follow the local Season xx directory classification, which resulted in the same data being referenced by Season 02 and Season 01, resulting in a change in the total number of episodes.

[enesha]

If you don't have faith in the metadata provided or the providers...Don't use them? Or perhaps attempt to correct the information available. As TheDreadPirate mentioned..manually match what you want.

[素兮若雪]

Too much manual work? Currently, I use one plugin to get the correct season classification and another plugin to get the metadata of the episode. But it was eventually broken by jellyfin. Jellyfin not only uses Seanson, but also the name of the episode. I just need to break this pattern and use only the clear season directory for season. Don't be too sentimental. In fact, many metadata acquisition problems of jellyfin are caused by this semi-intelligence, and many performances do not follow the rules set out in the official documentation.

[Efficient_Good_5784]

You're missing the point. This issue is because you're confusing Jellyfin by adding files for season 1 in a folder that isn't season 1.

Either move them all to a single folder named "season 01", or name them all by their season numbers and keep the different season folders that you want.