It looks like the problem with mass album removal is going with all labels they host(ed?). At the time of writing only one album of Primrose Music is still available (with only one track) on APM's site: h++ps://www,apmmusic,com/libraries/primrose-music-prm
While talking about Sonoton, the SCD series is now restricted to six (!) albums: h++ps://www,apmmusic.com/libraries/sonoton-music-scd
EDIT (10:01 CET): Now, they're restoring some of the albums, namely for labels whose name begins with numbers or A - including the Abacusync and AV Music Publishers libraries.
EDIT (10:14 CET): Bruton albums have just returned, too.