Yeah, but it's still not native. Anybody who wants PS4 controllers to work with their games still has to specifically add in the support, which I see that steam and FFXIV have.

I would try un-pairing it and re-pairing it with the PC. It is also possible about another signal interfereing with the signal so I would try a wired connection too. Not sure this would make a difference, but if you've got the steam version, launch the exe file outside of steam and see if that does it for you aswell.

The X360 info I posted though, is valid. I've had problems with the controller disconnecting and reconnecting to windows where then windows would not indicate it as controller #1. Usually shows up as two or three even though I only have one connected. Have had this since upgrading from windows 7.