I had some odd interaction with TrackIR and the number pad look keys. I had just checked in with JTAC and was about to put in coordinates. I hit number pad period <.> to pause TrackIR, which I've done for weeks. For whatever reason tonight, it used the default lock view instead of pausing TrackIR (I was trapping that key).
I tried Numlock, to no avail. I alt-tabbed out to check TrackIR, and every time it was paused. That may have been coincidence from all the mashing to try to get it working.
Numpad 5 would not fix it. Resetting TrackIR did not fix it. If I pressed the other numpad look keys, it would move that direction, but snap back to the CDU when I let go.
I eventually got hit by a missile and exited the campaign. How should I have fixed this? I was not very methodical with my key mashing, so I am not certain exactly which buttons where pressed in which order.