Guys remember one thing..

Direct 11 will force game launcher to run in 64bit mode as well...

Ff14 dev should be trying to reproduce this internally and work with AMD to fix in their drivers. I definitely think it's some compatibility issue.

Also if someone haven't tried please try older video card drivers, a few different ones and see if any difference. Updating to latest doesn't always mean it is the most stable. I had so many issues with latest Nvidia August drivers for example. And in their Nvidia forums everyone has compliants across various games.