Towards the end of my second flight tonight, my zenmuse H3-3d started jerking up and down. Before this, there was a brief moment of severe vibration during the flight. Previous flight was fine and the first 10 minutes or so of the second flight was fine. It continued until I landed and turned it off. Before the flights, during initialization, the gimbal was making more noise than usual but then settled itself down and operated as usual. http://youtu.be/_Yw0h3ceaVo Any idea what's happening here? I did do the downgrade from 3.10 to 3.08 before this flight. But the gimbal has performed flawlessly on 3.08 in the past few weeks.