It seems Plex had a pretty drastic update in it’s Media Scanner. See these two recent posts for similar issues (first is my own).
It was guessed to be caused by:
- (Music) If a single directory appears to have multiple albums, match them all.
Pretty much that single change made it so that unless your various artist style albums (aka multiple artists for a single album) are meticulously tagged, in appropriate folders and you have prefer local meta data turned on… Plex is just going to blow out single albums with multiple artists into the same album for each artist. Manually trying to correct this in Plex completely unmatches albums and breaks everything (which used to be possible).
I REALLY wish this feature was included behind a feature flag on the library. I would NEVER have a use case of having multiple albums in a single album directory (that’s insane to me), but there are PLENTY of use cases where you have various artist style albums. To me it seems like a change that fixes some 1% scenario and breaks a bunch of other ones (my own personal take, who knows how common multiple albums in a single album folder are).
Good luck!
