Windows 7: Xbox Media center playlist broken after purchasing music

I was using xBox Media center extender to play playlists created with Zune software on my PC. The music lived in .../sunscriptions/artist since It was Zune pass music. It was working great until I purchased some zune pass music with my Zune account.

Now, my 'favirotes' playlist on my xBox media center can no longer play anything I have purchased on zune. An error indocates that it can't find the music on the path (presumeably) because the purchased music now lives in a different folder other than .../subscriptions/artist.

How do I update the playlist on the xbox to know where my purchased music lives?

If I can't do that, how do I delete or re-add a playlist on my xbox so that it learns the new path where the purchased music lives?