Note that this was fixed in build 167 ( http://www.ventismedia.com/mantis/view.php?id=11298 ) . Please confirm one way or the other whether it works for you.

Thanks.

-Rusty

Which build?

Same thing happened with me. Made a few playlists in MM on the desktop. Had them synced to a SDcard. Checked through the android file manager that the playlists where there. Added the playlist folder to the MM app library and they were deleted afterwards after it tried to load them in. I have tried multiple times but they keep getting deleted.

Just spent some time putting together a playlist that ended up being 331 tracks. Went straight to Playlists and looked with Airdroid to verify it was all good. It was.

I then went to do another task in Astro and then went back to MM and the playlist is gone. Double checked with Airdroid and yes the playlist is gone.

Something special need to be done to save a playlist?