Uncontrolled position Problem in Auto mode and Cut motors in Qland

I had problem in Auto mode . Vtol plane in auto mode does not control alt and position . also when i changed mode to Qland autopilot cut motors and does not control land speed .

rel alt must be 2 meter but it reach 7 m .

land speed must be lower than 1.5 m/s but reach to 7 m/s.