Did you try to re-arm on the flight that lost power? You would have had to go to low trim and low throttle and when your up to your butt in aligators it's hard to think about everythig but it sounds like it may have worked. Also how do you have your fail safe set up? You may have momentarly lost the Rx and it shut the ESC down. That would require a re-arm to get power back. Not sure what the data logger woud show on that kind of event.