Not SquareEnix support, just trying to be helpful...

Long shot, but in addition to the CS recommendations above, I'd make sure that anything that hooks into DX11 for overlays or captures isn't running (possibly up to and including Nvidia GeForce Experience and the Shield streaming service). And honestly, any background programs in general, just to be safe. The easiest way to do this would probably be trying to reboot Windows in a clean boot mode (not Safe Boot, which won't load your graphics drivers) to ensure as few extraneous programs and services start up as possible, then attempt running the program again. Easiest way to set up clean boot is to go open msconfig, hide all MS services, quickly make a note of what's checked and what isn't, and then uncheck everything and reboot.

If the game works fine that way, then you can start re-enabling things and see where the game chokes and dies again to find the culprit. If it still crashes out in a clean boot... well, at least you've eliminated one possible cause (i.e., background programs/services).