For compilation albums, I always tag each track's year individually because I don't want Beatles songs from a 'best of' album to have a 2016 release year, for example. Because of this, albums split up into multiple albums, so I made a custom tag 'album year' where I put the album's release year/date. In order to be able to sort all albums, regular as well as compilations, by year, I made a virtual tag 'Sort Album Year' which appears to work as intended:
Here's the bug: When sorting the Album Covers view by
Album Artist / Sort Album Year / Album, I get this:
As you can see, not even the album artists are in correct order. Sometimes it changes, sometimes changing to
Album and Tracks view and back will fix the album artists being in wrong order, but then albums will split up randomly (even regular albums with consistent year tags). This affects only the Album Covers view but both the Music and the Inbox tabs.
Some screeshots of my preferences: