QuadPlane cut the throttle automaticly in Qloiter mode and crash(3.6)

ArduPlane Plane 3.6
15

thanks tridge, these days I tested the quadplan after a long time delay.Problem above didn’t happed any longer. But a new peoblem happen. I upload it here http://discuss.ardupilot.org/t/quadpane-qrtl-error-strongly-shaking/12664