you're welcome.

for mute time, everything in that general settings program dialogue pane is for pc jukebox functions.

as before 2 is possible in the list right click, the re-named playlist shows up fine in both jukebox and the 7k.

If for some unknown reason it does not work on your system, assuming none of the songs are in other playlists, I would check in all the songs from that playlist, the playlist then disappears, then check them out again with the new playlist name in the check out list to be created dialogue?