Hi. Last couple of days I have lost control of the Mavic. It reports it is moving when it is stationary and vice-versa, altitude either wrong or does not change, and today the drone did not stop when I released the joystick. Fortunately I had prop guards on so the crash didn't hurt anything.. Would these be the clues of a maladjusted IMU? I just adjusted it. It seems that it starts acting up after I change batteries for a second flight. Could be coincidence. I calibrated the vision sensors about a week ago. I also have a pretty crappy Samsung tablet I won't rule out.