You may need to do the Plex Dance, especially if you renamed any files. Keep in mind, the Dance is a destructive workaround, in that anything from this album that is in a playlist (or collection) will be removed from that playlist, and you’ll have to re-add it.
When the ‘Prefer local metadata’ option is enabled, the filenames don’t matter nearly as much, so if your filenames are suited to another player, you shouldn’t have to rename them.