Ciao,
first of all my hat goes off to you for an excellent product, I am enjoying it very much.
I have discovered that when flying on vatsim with FSInn (1.2 + Copilot 1.6), activating the numpad capture on any CIVA CDU (and then deactivating it, of course) will desync the Control panel from the keyboard for the rest of the FS session. In other words, the FSFDT Control panel no longer recognizes keyboard inputs (any key), one notable effect of this is that PTT keys stop working (I discovered the hard way

). The Inn Chat (ATC comms) keeps working normally and recognizes keyboard input.
This happens both when deactivating via the screw and via the / numpad key. Also closing and relaunching the Control panel won't solve the issue, nor will relaunching FSInn completely. There are two solutions I see:
a) never activate CIVA numpad capture, FSInn works perfect until you do. Or...
b) use a joystick key as PTT, the joystick capture is unaffected.
I don't think this needs an urgent fix, but just letting you know for future releases

Once again, thanks for the gauge.
Alberto