Quadplane Crash After Transition done

Hello, we tried first transition before one day ago. Aircraft pitched up agressively and after that I think made a stall turn and crashed. After crashed, we examined logs and couldn’t understand the problem. Can you help us to understand the problem.

Logs And Video:Quadplane Crash - Google Drive

You initiated the transition to QSTABILZE and aileron and elevator then did what you commanded on the sticks. Why not first initiate the transition to FBWA ?

You are right, switching directly to Stabilize Mode was a mistake, but I think our main problem is that I do not have control over the vehicle until the transition is done. What can I do about this? can you examine our log file please.

Update firmware 4.4 and this problem will be solved