Did you install anything else in the meantime? When vorpX can’t hook multiple games in a similar fashion usually something is interfering. Quite a few other programs also hook into games, not all of them are obvious. The help has a trouble shooting guide with a few hints in this regard.
Another thing worth trying is going back to an eatlier Windows system restore point. I would probably try that first. May save you the trouble shooting altogether with a bit of luck.