Jellyfin doesn't include language from BDMV

[voltangle]

So, I have rips of a movie that was on a Blu-Ray disc, and after importing it to Jellyfin all my subtitles are for some reason "undefined", although there should be information about the language used. I have not yet tried to play the files through another player (troubles with SMB), so I can't confidently say now that jellyfin is definitely the culprit here, but the "source" said in the description that this rip has all those languages labeled, so idk. I have attached a screenshot of how it looks rn

Is there a way to actually do smth about this? and make this work?)

EDIT: opened the rip through IINA (macOS GUI for mpv), it recognizes each and every tracks' language code (added attachment from IINA), so that gives us two possible outcomes:
1. I got confused and have not properly laid out the files in the library
2. Jellyfin got confused and doesn't see the language tags

FYI, this is my directory structure:
Gran Torino (2008)
├── ANY!
├── BDMV
├── CERTIFICATE
├── backdrop.jpg
├── folder.jpg
├── landscape.jpg
└── logo.png

[Efficient_Good_5784]

Jellyfin does not support BDMVs, so things like that might happen.

Consider remuxing that into a container that supports the subtitle type.

[TheDreadPirate]

Jellyfin kind of does support BDMVs, but not really and definitely not gracefully or consistently.

What Efficient said. Remux to MKV.