Can't get Playlist from phone to go to MMW

[bdplaid]

I recently tried doing some maintenance on MMW using Maintain Library, and as a result many of my playlists are empty. Sucks. Fortunately I have several playlists that I need still intact on my phone, in M3U playlists. But I can't for the life of me get them to transfer back to MMW.

I've tried rescanning, auto-syncing > library, importing, copying, dragging, all nada.

I am not using MMA.

Please help. Thx.