PRIMARY ANALYSIS: The airplane is unstable on the roll axis.
- The wings of your airplane are not symmetrical or are warped or wrinkled. Make a new, cleanly folded, symmetrical plane.
- The plane’s keel is generating a constant yaw and roll action to one side. This same effect could be caused by propeller torque. Make a slight counter trim correction to the rear of the keel.
- Your differential thrust setting may be too high. Change the banking sensitivity in your app settings.