Duplicate movie (instead of versions), with collection to add insult to injury

[Iskelderon]

Ah.  That's ok then.

The only other suggestion I have is to remove the IMDB ID from the folder name.  Jellyfin does not make use of IMDB for metadata, but we do use it for identification on TMDB since TMDB maps IMDB IDs to TMDB IDs.  BUT, sometimes that mapping is wrong.

Interesting, I now have a similar case with a movie where there isn't a sequel in the works, it generates a folder instead of a boxset around it and the duplicated movie phenomenon happens and the movie versions then appear in a dropdown, but the featurette gets swallowed.

Code:

"F:\Video\Contact (1997) [tmdbid-686]\Contact - [A Personal Voyage Cut].mkv"
"F:\Video\Contact (1997) [tmdbid-686]\Contact - [Standard Cut].mp4"
"F:\Video\Contact (1997) [tmdbid-686]\Featurettes\Carl Sagan - How Would We Communicate with Alien Life (Royal Institution lecture 1977).mp4"

BTW: I usually include the IMDB ID as well, since TMDB uses separate incremental IDs for movies and shows, often leading to false mappings, especially for more obscure stuff.