Hi there,
If you change the name of a song that happens to be in a playlist, the symbolic link in said playlist get replaced by a grayed “n- Empty”. The problem is that I can’t neither replace, move, delete, nor select this link.
In the playlist file itself, I see an empty line where the hash [folder,song] should be. So, I re-added the very same renamed song to the end of the playlist, edited the file manually moving the hash to the correct position, and voilà, I can now recall the song as before.