Rockbox

I am unable to insert a single track into a playlist via TagCache. I have attempted to do this from the Artist, Album, and Genre menus. I am able to insert multiple tracks at once (an entire artist, or album, etc), but I cannot insert a single track into a blank playlist, an existing playlist, or a dynamic playlist at all. It acts as though it inserts the track, however when viewing the current playlist the newly inserted track is not there. Additionally, when inserting into a blank playlist it says that it has inserted the track, but it dumps you back to the file browser, hitting play brings you to an empty WPS saying No File! Also, queueing a single track into a playlist results in the same behavior.