Hi,
Here's our setup:
Flight Core with PX4 (v1.11.3).
ESC: Castle 35A ESCs (https://www.castlecreations.com/en/multirotor-35-quadpack-010-0125-00)
Transmitter: FrSky Taranis Q X7
Motors: KDE Direct 3510XF
Within QGC we are able to see that the PWM signals from the RC transmitter come in correctly and update correctly as seen here: 
The PWM outputs don't change regardless of the RC input values. However, when I arm (PWM_MIN set to 1200) the motors spin and we see this: 
So we know that flight core is capable of sending the PWM signals through the ESCs and to the motors, but it just won't do anything with the signals sent from the RC transmitter. Any thoughts?
Thanks!