Has Pixracer been confirmed working with Rover 3.1.1? I cannot seem to get a throttle signal out. It Arms (all checks off) but nothing out (ESC doesn't initialize). Steering (channel 1) functions. Mission Planner shows it's responding from the Rx and if I connect the ESC to chan 1 the motor will run with steering input so I know the hardware is good. Unless the PIxracer itself is faulty but before I dig into that, maybe by loading copter and checking it out, I thought I would ask here. This is not skid steer, just a typical ESC with a steering servo.