Which is odd, because I'm running 3.0a7, and it does reliably remember the playlist over a reboot.

Hmmm.

It also doesn't seem to matter if it's all my tracks (approx 11000) or just a single album of 10 tracks.

The playlist being lost when upgrading (or downgrading) is not necessarily related: there were no guarantees that it would be saved.

I have no issue with that - it's just something I noticed when going up and down versions and I feel must be related somehow.

It's pointing to something on the dynamic data partition I think since there are other anomalies I have noticed:

1) It randomly marks tracks for some reason.
2) Play counts seem to be often incorrect (some tracks I'm sure I've listened to still show 0 plays)
3) Bookmarks are very unreliable (about as reliable as playlist saving)

Roger, do these 3 things all seem to be working OK for you?

Would there possibly be any benefit of wiping my dynamic data partition? I can always back it up and restore it easily enough I guess.