Tried several other missions (campaign, training, instant action) and the problem persists. Full stick deflection barely moves the elevator in either direction.
No calibration issues, axis is assigned properly, no conflicts, no other controllers added, no force feedback devices, saturations set at default, tried various pitch curves, test window shows normal operation, Ctrl-Enter shows normal movement in the game, frame rates are fine, the problem occurs regardless of airspeed or weight or altitude, and the ailerons work normally.
The elevator simply doesn't move more than a couple of degrees even with full stick deflection even though every test window and indication shows that it's working normally. If the tests show it working properly, why in the world does the elevator not move?!
Very frustrating.
And on top of that, I noticed that some of the training missions are now missing such as the freefall bomb mission and the air refueling mission.