Autotune Roll axis not working

ArduCopter Copter 3.4
1

Edit: I follow my experience here not to repeat threads Autotune failed / Pixracer / overpowered

I try autotune roll axis only (set to 1) but nothing happens 3.4 with a pixracer.on a robocat 270
I have autotune in a switch
Alt hold looks good, only yaw have little movements I don’t know why yet, it’s a new build
Tomorrow I’m going to try with all tree axes (7) to see what happens but I don’t have enought flying time I hope.
Here my log

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I found thr mid too low, perhaps there is the problem, tomorrow I try again

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I disable IMU2 because looks worse AccZ and try again Autotune, now works like normal AT but with very short movements, the copter flies well in alt hold, pos hold, RTL, land and fast speed without loosing altitude (18 m/s) I’m happy with my quad but intrigate why autotune don’t work correct

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