Very strange crash

At Friday I try to flight with my FPV250 race with pixracer. During liftoff copter flip-back. After second try props were destroyed. Logs are here

At logs is strange is no evidence about roll and pitch movement, so it looks like there was something wrong about estimator.
I did one thing diferent - I armed using QGC, coud it be cause?
Today I try another flight, and everything works OK(armed by RC)


@David_Kraus sounds like misconnection of ESCs or less possible misconfiguration of airframe?

There may be several other reasons like sensor orientations and calibration failures. But if it couldn’t takeoff and flipped back, the ESC connection mistake is more possible.

All motors was turning, and today flight was OK. Strange is now sign of flip in log what I posted.