Retractable gear F35 crash again

Just fixed it from the last crash resulted from loosen clevis. Now the full movement taileron is modified to a hinged type.
Successful and more predictable control. An abnormal 90 degree roll kick is already noticed at end of third flight and resulted in safe emergency landing. So stupid to put her up again without figuring out the reason.

Finally, ended its life into a dead spiral after the 4th flight, preceeded by violent roll after banking turn. Apparently no mechanical failure can explain the cause. Still investigating the cause. Suspect receiever lock from overheat BEC.