Welcome to RCU. At a minimum I would surely find out if your switch is in the same position as others who have the exact same set-up. Are you saying that the switch itself moved positions? OR the ailerons got reversed WITHOUT the reversing switch being moved? It is possible that you don;t know , but finding out the "correct" position may be telling. I wish I had one to tell you. In fact I wish I had that plane too.