I'm not sure what you mean, that when you open a new playlist, the playlist that is already open is "cleared." Do you mean if I have playlist A (a saved playlist) open, then I open playlist B, all the songs on Playlist A will be cleared and when I go back to playlist A it will be empty? If that is what you mean, how are you supposed to go from one playlist to another without wiping (clearing) the songs from all the playlists?