My Library View Does not List all albums of an given artist

[reonb]

I take great care to tag all my albums of a given artist consistently. I put the name of the artist in "Artist" and Album Artist".

Often, when I browse my library (on my Android pad) some of the albums of some artists do not appear. If I use to option to list all the albums of a given artist, it shows them all, but it does not show in the Library list.

I hope someone can help.