A few days ago I was flying in the cold (28 f) and my gimbal flipped down and backward! I was seeing things upside down. The next flight I had to turn on and off the battery 3 or 4 times before the gimbal would do its normal power on gyration. It seemed to try, but it just jiggled and whined. Since then it's been working fine. Fw 1.4. Full batteries, etc. Anyone else have this issue?