Strange behaviour

[Ninabeertje]

A few days ago I flew above a fast river. When the Mavic was 4 meters above the surface it started to move by itself but lucky I did not lose control. Today at the waterside on a different place I launched the Mavic to about 10 meters and without touching the controls it was moving around. Again lucky I could control it down away from the water.
Anybody have the same experience and know why the Mavic does this.?

 

[Thomas B]

What is meant, specifically, by movement? Please describe the motion.

 

[Ninabeertje]

What is meant, specifically, by movement? Please describe the motion.

It went forwards, backwards and sideways without touching controls.

 

[Thomas B]

What mode? How many GPS satellites?

 

[Ninabeertje]

What mode? How many GPS satellites?

P mode. GPS I do not know was looking at the drone finding out if it would listen to the control.

 

[Thomas B]

P mode. GPS I do not know was looking at the drone finding out if it would listen to the control.

Are you sure the drone was not auto-switching to ATTI mode?

 

[Ninabeertje]

Not that I know.