If you scale the miniplayer with a double tap and, always with a double tap, you'll scale it again to let it returning to the previous size, the position of the miniplayer will change for an instant and then automatically return to the original one (it shouldn't do it, but it should behaving instead as the youtube stock counterpart). The problem is that when you'll try to move the miniplayer after this, the miniplayer will instantly move toward the direction of dragging, without showing any animation.