This literally just started happening to me last night after no system changes. I had to switch the game to DX9 to play without the fatalx 1000000002 error.

Had come back to the game a few months ago and have had zero issues util yesterday. Completely random. Perhaps SE patched something this week? My system is completely up to date. Probably will cancel my Xpac pre-order and cancel sub if not fixed. DX9c in 2019... Yeah no thanks.