X8 big copter uncommanded Yaw after 3 minutes, please help to analyze this log

5 6-14-2016 12-42-40 PM.bin.log (1.4 MB)
Hello guys,
I was flying a X8 octo, and after like 3 minutes it started to rotate around, I could not stop it. It was controllable but, very hard because of the fast rotation. I crash landed in the end.
I tried to flash 3.3.3. Same thing happened after 3 minutes.
With the change of the flight controller and the gps the problem is gone.
Could somebody please take a look at my log, I would really appreciate it.
I would like to know what caused the problem. Some people had the same problem, but there was no conclusion.

Best regards,