Many smart playlists unavailable in "playlist is (not)" criteria drop-down
After upgrading to Lion and updating iTunes to 10.4:
When I try to create or edit a smart playlist, and choose the criteria "playlist is" (or "is not"), many of my existing smart playlists are unavailable to be specified. Example attached:
Well, assuming it attached properly, you can see that the list of playlists in the drop-down is missing many playlists that appear (and seem to be working fine) in my library on the left.
Killing me.
iMac 24" 7,1-OTHER, Mac OS X (10.7), Vertex 2 SSD