If V successfully injects, but you are having no lucking getting the UI to show try the following:
Press the shift key with the VR window active
If this does not work V may not be injecting because the underlying game is too CPU intensive. V will not display into a game with a FPS lower than 80 frames per second
. Tips to raise your FPS:
Try lowering the quality settings in your game
In VR, look at a part of the scene that is less complicated (a wall). This should raise the baseline FPS.