I had the same problem with the electronics that came stock on the SC10 RS. I initially fixed it by setting the speed control to forward + brake with no reverse. A buddy on mine got a SC10 RS a few months after I got mine. He had the same cutout problem and thus we had to disable his reverse as well. When I got the RTR SC10 4x4 I didn't wait around long enough to see if the same things would happen - I immediately set the stock speed control to forward + brake.

I eventually burned out both of the stock Reedy (3300kv and 3500kv 550 ) motors and subsequently switched over to sensored motors and speed controllers. I need not tell you that I didn't bother with setting reverse on my Tekin RS or Hobbywing SCT Pro. I make myself suffer by doing the walk of shame from the driver's stand when I make certain types of errors!