Radio calibration, no throttle limit indication

I am setting up my system for the first time.

I am doing the Radio Calibration which has gone well except that when moving the throttle through its full range I see the green bars moving but the red limit indicating bars do not show. I have tried the throttle on both the throttle and the elevator sticks of the transmitter.

I am using the HKPilot Mega 2.7 Master Set, Ardurover v 2.49, a Spektrum DX7S

What GCS are you using?

Mission Planner with the HKPilot Mega 2.7 connected to my laptop via USB cable.

The helpful response I was getting suddenly stopped and I’m wondering if this is because my question was moved to a different sub-forum?