Ok, if you read the bugs forum, you'll see a post by Roger asking for verification of a "known bug" in emplode 2.0b7.

When moving a track from one playlist to another, the track will vanish: It will be removed from the old playlist but will not show up in the new playlist. Further, the track will also not simply be unlinked from the database. It will be internally tagged for deletion. Performing a sync on your player will remove the track completely (yeah, DELETE IT).

So, if you need to shuffle things around to a different playlist, looks like you're best off using an explicit COPY and then remove the original for now.

Note, if you drag from the RIGHT pane to the LEFT pane, it always defaults to MOVE. To COPY, use the "COPY" edit command or drag from RIGHT pane to RIGHT pane using two windows (Window menu, NEW window command)

Bruno

edit: damned transposed charcaters. :)