Running a Storm drone with Naza M V2, Futaba 14sg. The system worked great until last upgrade when at takeoff she flipped in GPS when throttle at 55 degrees of travel. Destroyed two props and one broken arm. R&R the machine and now I can't figure out what is making it act this way. I have deleted all DJI references on my computer to a clean slate, reinstalled the driver and assistant software, did a compass swing, recalibrated the IMU, swapped the GPS puck with another I had and ran the software. In manual everything works normal. When I go to Att. or GPS I have idle and max pwr. This is the second crash this month; my S800 with Wookong made it to treetop and all motors quit. A very expensive month. Any ideas would be greatly appreciated. Helped a friend with his 450 with NAZA M and program ran fine and he has had no problems. Same computer.