My flight controller is Omnibus F4V3S. I flashed the ArduCopter V4.1.0-beta6 firmware. I used a 5-inch quadcopter. After unlocking and hovering for a period of time, the aircraft turned sideways. The mission planner HUD showed that the roll was already oblique. I tried to restart the flight controller, and the attitude was normal. I flew again and the problem reappeared. This problem did not appear in ArduCopter V4.0.7
Please post in the Copter 4.1 channel.
You’ve need to post a log with LOG_DISARMED = 1 and LOG_REPLAY =1