Auto tune repeated failure

I have been having problems with my mostly newly built quadcopter. It flies ok, but not as responsive as I think it should. After auto tuning, I get a lot of problems. Ive experienced problems with two Flight controllers, apm 2.6 and a pixhawk.

Main problem that occurs, almost immediately after I land and disarm after Auto tuning, is that the quadcopter would rotate/yaw uncontrollably to the right.

At 1st I thought it was the apm 2.6 being faulty..bought a pixhawk. Same thing happened with the pixhawk, I assumed an esc was faulty, bought a 4 in1 esc...same thing eventually happens. Usually the rotation will start after I disarm and save the autotune, and try to get back in the air. This time...It flew up nicely in the air..then 2 mins later...began to spin. 

Whats happening here?

Attached the last log file on the sd card

31.BIN

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