Trouble using RC command with MAVProxy

Hi, I’m trying to control my quadcopter (APM2.6) with my computer.

I got MAVProxy installed and it connects fine, I can arm, change modes etc.

The only problem I have is that the quadcopter doesn’t react at all to the RC command.

Example how I call rc:
arm throttle
rc 3 2000

Nothing happends. Doesn’t matter what channel i “switch” to, or what channel I use the RC command on, the quadcopter never reacts.

Controlling it with the microcontroller works fine.

Any idea why rc command isn’t working?

A quick update, managed to solve it by loading the default APM parameters by “param download” followed by “param load” in MAVProxy.

One of our parameters probably prevented it, no idea which.