I can not set up autorotation with the latest version. I have DX6i and RX2SIM. I have followed the instructions but when I activate auto, the collective goes to full negative and the moto shut off.
I think you should calibrate your transmitter again. This sounds like you have calibrated the motor function as pitch function. So, switch off the motor in your transmitter and then calibrate it in neXt. And at the end, you change to function tab and calibrate there the autorotation switch as slider.