I bought this with my GS800 at the beginning of the month.  Had both for less than a week.  I used my rotisserie for the first time tonight.  I experienced the same problems as everyone else. The rotisserie froze up, switched direction, and unthreaded itself from the motor.  It’s a design problem the Masterbuilt needs to fix.  I fixed mine by grinding material off each end of the spit adapter.