I've spent many hours trying to get a fix for this one (DX11000002) Fatal Error. Always and only seems to happen for me in FFXIV. Other games no issue at all.

What did it make a bit better for me was setting my FPS in Radeon settings to 60fps and ingame fps settings to unlimited. Besides that i disabled all settings in my Radeon software. Only thing i have active is the setting 'waiting for vertical refresh' and the 'max fps setting to 60'

No i get random once a day this error instead of every 30 minutes like in the past. Perhaps you can try this and helps you aswell.

Nothing more frustrating than waiting 6 hours in queue and then after 30 min get kicked by this fatal DXerror wich put you directly back in queue (looking at you SE..) since this game does not have some kind of a grace system

GL