Copter3.4-dev Crash (EKF_CHECK-2)

Hello,

I had a weird crash with my big camera X8 using 3.4-dev.

I had 4x 20min flights without any problem using 3.4-dev before. I used it because I needed the external Barometer...

I flew it in stabilize while suddenly it rolled to the left and crashed

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Need help on PID Tuning / Big X8

Hello,
I've just finished my X8 build and flew it the first time yesterday.
While hovering I got slow oscillations which look like my Roll/Pitch P is too low. On any control input I get overshooting which nearly leads to a crash.
I also tried autotuning

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