Newbie problems with multitrack flac

[Bee Ginner]

Hi,
I ripped some compilations like "14 Masterpieces of Rock" as multitrack flac. With foobar I tagged each track with a different artist and year.

I find the tracks of this multitrack flacs in the musicbee library and the computer node but not in auto-playlists.
If I split a mt flac to singletrack flacs, they show up.

Is the problem with the multitrack flacs a bug or feature?
Is there a work-around?

Regards