I’m having the same problem. New install of WOFF / BHAH 2 and VorpX.
CH joystick and pedals work. TrackIR works. I set up Vorpx with a file for WOFF and it gets me into WOFF game.
But I can’t get to the In-Game Settings menu to click Head Tracking “ON” so I’ve got no head tracking in VR.
Tried everything we could think of today including the Del key; nothing works.
What Ralf says above gets me to thinking I might be able to access the In-Game Settings Menu with my hand controllers. Probably try that tomorrow.