I know there was a similar problem a little while ago, and that there seemed to be a bug fix that worked for some people, however I am having the problems again. I will add songs into a playlist online on a computer, and they don't show up in my mobile playlists. I have tried to "un-download" the playlist and then "re-download" the playlist multiple times, change the privacy settings on the playlists, and I have taken individual songs out, then put them back in to no avail. Does anyone know of a fix? Or is this just a bug that needs to be patched? Thanks a bunch!