Today I was testing VTOL in Qstabilize and Qloiter mode. First flight works great, then I thought to do hover test and put it in Qloiter mode. It worked great for a couple of minutes and was hovering perfectly, All of a sudden it starts oscillating and got crashed.
Tried to put in the land mode no luck.
Quad plane, Wingspan 2.5m
Prop - 22 inch
PDB - Cube kore + black cube.
Attached the logs, Kindly go through it.
Kindly let me know what went wrong?