Upgrade to Mountain Lion = Empty Playlists
Yesterday I upgraded from 10.5.8 to 10.8.3. Thought everything went OK until I just went in to fire up one of the many playlists that I had created in iTunes, only to find all of them empty. The list of playlists is still there, and when you click on a playlist, it tells you the number of songs and how long the playlist is, but the songs don't appear.
I've seen similar posts in other forums on here, and a few suggestions have been offered but I haven't seen any clear solution to this rather massive issue.
I've seen a lot of suggestions as to what the cause might be or what might or might not resolve this issue, but has anyone identified a repeatable solution to this problem?
Thanks, all!
And thanks for the robust pre-launch testing, Apple!
MacBook, OS X Mountain Lion (10.8.3)