Audirvana shows only one album in Apple Music playlist

I have the most recent Apple upgrade and Apple Music works fine, shows all my playlists and music. The library is on an external HD. When I sync Audirvana to Music, all playlists appear but some include only one album, even though the playlist when checked on Apple Music shows several albums.

Thanks for your help.

What kind of files are you not seeing? Are these by any chance M4P? These have DRM and can only be played with Apple Music.

they are AAC files. Thanks for responding.

Hello @arugula,

Are you using Studio or 3.5 while you have the issue?