I was having the same problem, running v0.64 but the game was not starting up with VorpX. I was messing around with the settings in SP and gave up. Started it up today and it was working.
I had to set it so my main monitor was duplicated on my oculus then start up the game in full screen (best to restart your game after changing settings).
You can give that a try and hopefully it will work. Normally I run my oculus as monitor 2 and set vorpx to start games on that monitor and it was not working for me. Maybe the duplicated monitors makes it work for BF4?
Not that I know if it matters but I’m running dual HD5770.