This is a bit of an odd issue. I have the latest installed versions of all airports, GSX and standalone. I'm using P3d 3.3.5, and got an in-sim message that an update was available for Couatl a few days ago. I updated and now when I spawn the sim at KMCO, in the NGX, using the Taxi2Gate KMCO airport, the 'youcontrol' menu is not available when pressing ctrl+F12. Looking in the P3D add on menu, both Couatl and the addon manager are both available and appear to be running. However the only way to get the Youcontrol menu to come up at this airport is to select - 'Restart couatl', and then Ctrl+12 works as it should.