It has happened two times now. First time I was in P mode and just went up to 400ft and then hover in the place. I was looking at P3P and it starts moving down wind I waited to see if it would come back and it never did. So I manually moved it back to position and also down. At 100feet it worked just fine. Today it did the same thing at 120ft. If I didn't manually bring back to position then I would loose it. I just bought it. Should I replace the P3P?