Not every album is visible in album view. Some are only visible in the album list/grid view and can’t be found by searches. Some are only visible from searches. It’s quite inconsistent.
A nice example of this is this double album:
drwxr-xr-x 3 1026 users 0 Jan 8 21:16 Exai (CD 1)
drwxr-xr-x 3 1026 users 0 Jan 8 21:20 Exai (CD 2)
It’s also named the same way in the tags.
With this album, only one of the disks is visible in album list/grid view:
…and the other one is only visible when I search albums:
I thought I was going nuts, but it turns out that lots of albums are simply not visible in the list. There’s no obvious common thread- some use “artist”, some use “album artist” to group them etc…
I am running 2.118. The permissions and so forth are uniform, and the albums behave normally for other players. The MPD database was fully rebuilt etc…