Dear friend,Check if you have latest FW. There was an issue with album track order but it was solved.
IMHO, one of the things that is still not good (@FiiO ?) with playing order is when opening an artist that i.e. has 3 albums and at the artist level I use the play icon to play all his tracks, everything is mixed and sorted a-z from all 3 albums ... its a mess and doesn't make sense.
If I use play at artist level it should play 1st album track 1,2,3,... , 2nd album track 1,2,3,... and so on. ... IMHO
My 2 cents
If you would like to play the albums for a artist one by one, you may try to enter artist-album and click the play all button in the top right corner for help instead: