ESC issue?

[ebeez]

 

[PsyBorg]

That has been flying good for you and seems to be tuned fairly well.

If you have not crashed hard nor got it wet I would say that looked and sounded like a standard issue failsafe the way it twisted and rolled to that back right corner.

 

[kpixels]

Could you have disarmed it without realizing it? I did that once but @LitterBug figured it out and convinced me to use switch instead of sticks to arm. Your props weren't spinning on impact but then it sounded like they all started up at the same time, like re-arming.