What I did was delete all of my playlist structure from the Playlist folder. Basically all I had was Playlist folder > Artist Names > Album or songs. So I deleted that. I copoied the Artist/Album soup and mirror pasted it into the Playlist directory. Then I copied Genre and Years and did the same thing. Now when I sync again, it automatically adds another mirror to Artists. Now I know I didn't touch the Artists soup view so I didn't cause that. Does this make sense?