Sorry for double post but I am getting utterly frustrated by this...
I have an almost fresh system now (well except actually replacing windows 10) steam is installed from scratch all folders and other traces deleted all drivers cleaned and reinstalled.
I even updated my Bios all my MB drivers...
On a fresh install the game works, until I start it in VR, from then on it also doesn't allow me more than 5 minutes in non VR gameplay.
No other game has issues with VR, SteamVR recovers right after I restart DCS after it crashes.
The only thing I can say, is that it works on my alt PC with a 1080 ti and in my main theres a 2080 ti in, but I am not switching cards now to make sure.
Added another crash log to the list in first post.