Try v3-alpha-6!

I just used upgrader to apply it (took two minutes), and then it rebooted, tried to rebuild the database (which always fails when done on the player's own initiative), and then started up just fine.

I then ran JEmplode, which immediately forced another database rebuild attempt. Once THAT finished, I tweaked a playlist (to force yet another sync), and then did a sync via JEmplode.

All's well and working now with alpha6.

Cheers