weird

Hey! I have been flying the Mavic Air 2 for 3 months, and it's great. My favorite takeoff place is the top floor of my apartment building, it's easy to go there, and I always have good signal with good range. But there is a strange occurrence that I noticed when flying at night or late evening...

Whats up Pilots, I need help with this issue, I took my Mavic Pro for a short flight I wanted to get a nice building at night but as soon as it lifted up it went crazy I couldn't control it and it did some kind of flip and flew backwards and it hit a wall. can someone help me figure this thing...