unstable

School boy error today. Didn't double check propellors. One flew off at about four feet up. Inspire Pro now unstable in air. Wobbles and drops altitude. What have I probably done and is there anything I can do to fix it apart from send it back for repair?

Hi All, Does anyone else suffer sudden altitude drops when hovering? Specifically, often (but not exclusively) when I'm at low level, like 3 metres above a wheat crop, my I1 will suddenly drop a metre or even two with no warning. Mostly it then slowly climbs back to its original position but...