I just bought a Ronin SC and I set it up with my Sony a6400 + Sigma 16mm and although it was quite difficult to set it up with the focus motor after sometime I did it, the focus worked fine but whenever I try to calibrate the focus motor by pressing two times on the focus wheel, the motor starts to work on the lens but it never stops and the Focurs Gear Strip gets caught in the motor.
Since the Focus Gear Strip is not really a band and has a thicker end, it can´t completely loop the entire focus, but I don´t know how to let the focus motor know where it should end, because the focus ring on the Sigma 16mm just keeps going and so does the motor and the Focus Gear Strip always get stucked.
On the DJI tutorial I watched, when calibrating, the motor just moves a little back and forth and then goes green but on my case it just keeps going and I don´t know what to do...

The real problem I see here is why you bought a Ronin SC just a couple of days before the launch for the SC2...