I am trying to learn the ropes of the Ardupilot. During my first flights in stabilize and alt hold modes I had everything going very well. Only thing that troubles me is that occasionally my quad-copter has a single Twitch. It does not seem to be due to external factors or RC input since it can happen when I am not touching any controls on the RC. At the same time my motors are not behaving weirdly when throttle is off but at some throttle it can happen on the ground as well.
I am flying with apm 2.5 using AC 2.8.1 firmware, Mikrokopter ESC with PPM input and Futaba PCM1024Z remote.
Has anyone else seen the quad-copter flying very nicely except for the random twiching?