Has your aircraft been crashed ever?
This could be a gimbal overload hardware error that can occur in corners when the gimbal motor shafts are slightly bent and the motors require and unexpected amount of power.
If it hasn't been crashed, make sure your IMU and gimbal calibrations are all up to date.
If you have access to another DJI aircraft, try using that to see if it is an issue with your hardware or the flight control in general.
Map Pilot is not actually in control at all when flight is occurring. A flight plan is loaded to the aircraft and the aircraft executes it so there isn't much opportunity for us to fix this issue as it is likely hardware related.