So I should look for help with Android Media Scanner instead then?

Album Artist needs to be the same value for all tracks on an Album.

I have, for instance, four songs from the first Guardians of the Galaxy soundtrack. All of them are tagged with their own Artist but with "Hollywood Records" as the Album Artist, and the issue is present.

Several albums treat the album artist by the name of one artist credited on a track, rather than the album artist specified in the metadata. I'm on Linux, so I can't use MM5 to edit metadata, so I tried using Kid3 to tag each song as Compilation=1, but there's no change.

Thanks for letting me know! I've switched to Linux (Pop_OS) recently, and I'm taking a look at the metadata now with Picard, and that matches what you're saying. Probably should've known to do that without being told, but oh well. I hope someday we can get native Linux support!

I have a collection of music that I keep in a single folder and manage from my Linux machine with Clementine and sync to my phone with Syncthing. All of the album art appears properly in Clementine, but some of it doesn't appear in the MediaMonkey app. Is there anything I can try to fix this? I've ...