Which motor is it?
I have just had this happen on a PixFalcon. Motor 1.
If I move the connection to another motor the problem moves, so its something out of that port.
I was getting ready to change motors and ESC’s.
Standard PWM ESC’s.
Your video was a bit quick, did the motor spin at all?
At what throttle setting did it strat to do this?
We have also had issues with Shot being used on standard PWM where we had to change out the Shot ESC’s.