I haven’t been able to test what I believe the issue is yet after reading the forum.
From reading that post, I believe that after calibrating the ESC’s, you need to disarm the drone. If I just disconnected the battery from the drone and reconnect after calibration, I get no movement after arming. So I believe I need to disarm via the button from the pixhawk, then disconnect and reconnect.
Arming/disarming is easiest using the throttle stick.
Arm - right lower corner, Disarm - left lower corner.
Alternatively, you can program a controller switch.
The safety switch, if used, must first be turned off to arm. Note some GPS modules have integrated safety switches.
This helped! For a more detailed explanation, I was assuming the safety switch was the arm switch. So I would try and take off, but got no movement from the motors. Once I read your last statement about the safety switch, I realized what was meant the whole time. Hold the safety switch till solid, then arm it with the controller. Thanks!