Uncontrolled position Problem in Auto mode and Cut motors in Qland

Hi,
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 .

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

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

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