Hi
I have the same problem, DXGI_ERROR_DEVICE_REMOVED crash.
Also on 1080Ti and VR (Rift). For me it started during the weekend 20180407. Since then DCS has crashed every time, sometimes quickly, sometimes I have been able to play for awhile.
When doing some testing yesterday, I found out that it did not crash when turning shadows off, but quickly when enabling (have always had them on high, but also tried low yesterday). It was a short session so maybe it was not conclusive.