Yes I think I was using 4.13 (I have forgotten actually) and I believe a recent Windows update caused my system to lose the throttle setting (only) where it would not hold calibration and just using the throttle could cause all of the CH gear to shutoff for a moment. I thought it was a bad potentiometer (even though its only been about 8 years) so I replaced it. It was not the potentiometer but upgrading the CHCM fixed it.