hawker800

Reinstalling didn't fix it either unfortunately. Do you mean dump the X-Plane preferences? Or are there preferences specific to the CRJ?

No, it's not the Yaw Dampers. A great suggestion though. I tested it on my friend's machine and the symptoms are the same as I am experiencing.

I wasn't sure where to post this - hopefully this is the right place. I am Running X-Plane 10.25 64-bit and have been using the CRJ-200 for a while, without much trouble. Recently however, the autopilot has refused to engage and I cannot figure out why this is happening. The FD button enables the flight director and the command bars appear on the PFD. Turning the heading knob selects a heading, turning the altitude knob selects an altitude. So far so good. When I press the mode selectors on the MCP, nothing happens. Visually, I can see the buttons being depressed, but the autopilot just ignores them. Same thing for autopilot engage. A friend also has the CRJ and it works fine on his machine - so I know I am not simply using the wrong technique. Can anyone offer advice on how to fix this?