I found similar but not the same threads out there. If this has been answered somewhere else, please post the link.
After loading a multiplayer mission, I damaged my snapview files. I have been able to recover almost completely from this rookie mistake, except my TIR center position.
All the snapviews work, when I re-center TIR it points to my lower left on the canopy rail, just above the radio volume controls.
For clarity, my snapview NUM0 works fine, when I re-center TIR it points lower left in cockpit.
My SnapViewsDefault.lua :