Yesterday I had a scare, while flying the Mavic an alarm went off and the message on the Crystal Sky screen read, "aircraft braking, return sticks to center and then continue to fly". Has anyone seen this before and if so what caused it and what does it mean? The Mavic just hovered, I had no control even after centering the sticks. I eventually turned it with the left stick and after doing so regained control. I immediately landed after that. Is there anything I need to do before flying again? Any help would be appreciated, thanks.