So I had my Karma about 900 ft out over the Gulf of Mexico recently got a bit nervous and instructed Karma to return to me. Then to my horror the Controller turned off and rebooted itself. Controller powered up as usual seemed like it took forever though. Luckily Karma was just hovering about 100 feet above the water at 900 ft out and upon signaling to return to me again it seemed like everything was fine and came home. I've had this happen one more time since then. Has this happened to anyone else, and has anyone figured out why and how to prevent future occurrences?