

This, also a recurring thing I keep hearing from people moving from Plex to Jellyfin is that not all media get recognised correctly.
Which is probably because Jellyfin is less forgiving on file structure, file names. So check their site first for what Jellyfin needs: https://jellyfin.org/docs/general/server/media/shows
It’s not unreasonable requirements just seems somehow Plex didn’t care about structure as much.
Correction. Use the finamp beta version, unless that recently made it out of beta.