I have made loads of SMART playlists for all my artists that i have Eminem, Dr. Dre, 50 Cent Etc. and they all add the songs which contain those artists, however i made a smart playlist called D12 and its added all the D12 songs in, except D12 is a group so i wanted to add all the solo D12 songs in aswell, for example all of Proofs songs, when i go to edit smart playlist it has Artist --> Contains --> D12 then i click the PLUS sign to add another rule going Artist-->Contains--> Proof, after i click OK or APPLY it clears my playlist adding NO SONGS whatsoever i have googled the issue but found nothing on the subject, - is there a way to make a smart playlist with all these artists in so that it can LIVE update without me having to make a normal playlist and keep adding the artists seperately.
Thanks.
[I Have also tried Album Artist-->Contains-->D12, But this still didn't work]