Since it still was an Early Access title when the original vorpX profile was done, there might have been changes to the game in the meantime that vorpX does not like. Last time it was checked it worked reasonably well with Z-Buffer 3D, no Geometry 3D though. Some games are patched so often these days that unfortunately there always is a chance of a game patch breaking something. Will be checked again before thr next vorpX release, thanks for the heads up.
In regard to inverted head tracking please check whether you maybe play with inverted mouse, which could be counteracted on the head tracking page of the vorpX ingame menu. Unless a game has Direct VR support, vorpX emulates the mouse for head tracking.