Crashed this Mini Mustang last week. Took everything (power wise) out and installed in my Tiny Trainer. Receiver would only power ailerons. Changed out receiver (from Simple Cub) and everything worked and flew great. Rebuilt Mini mustang and got a new receiver (Spektrum AR620) today. And now this is what’s happening. All servos work great but not the motor which worked fine with Simple Cub receiver two days ago.