The plane suddenly turn right in FWBA mode

Hi all ,My Rambler RS have installded F405 WING,it has been test well for several flight ,but in the last flight it suddedly turn right in FWBA mode but i actually give a left turn ,and i change to manual mode to flight a few seonds and change back to FWBA mode agian,It seems ok.
I not sure if this is due to FC problems or firmware problem .
My plane was crashed may be due to FC problem ,so i change the new F405 WING,
Please look at my log to help analysis the problem .

log is below