Something strange happend today and I don't know what it is. I'm new to the APM 2.5 and a bit clueless right now.
I flew the Hex several times "stick" and it flew great. Guided mode worked like a charm and the copter was super stable.
Now today I started the drone and took it into guided mode. It flew as usual to a waypoint not 40m away. 3DR connection was good. When I gave command to fly a bit closer, I just looked up from the laptop when I saw all propellers stop at the same time and the thingy came down like a brick from 15m. All I did was click on screen and select "Fly here".
Batteries were all fresh and the drone about 1 min in the air when the crash happend. Flighttime 13 min, the APM has its own 3S, the ESCs run on 2 x 5000mah 6S. ESC, engines and batteries are usual cold after a 10 min flight. Firmware is on 2.9.1
Any ideas what went wrong?
I attached the tlog..