Hello, I have had a phantom for about 2 weeks now. It has been flying great, but recently I got the assistant software. I was told to calibrate the IMU so I did. I updated the firmware and so on. Then when I flew it again. It made me calibrate the compass again. So I did. It was flying fine, and then today when I YAW around to where its sideways it goes forward without me touching anything. I have tried everything, calibrating the IMU again, calibrating the compass again. Nothing is working, please help.