If there is an option to correct this, I can't find it. Since the whole idea of going to miniplayer is to free your screen for other work, the miniplayer should stay on top but the popup Now Playing playlist should not. I drag it to the side of the screen or a corner, but it still intrudes. If it was not on top, I could position another window so I could see enough of the Now Playing playlist but not have it overlap and obstruct my other work.