Crash on launching MT version at VR mode, after ran any SteamVR games

[kerlcat]

Installed latest stable version and use MT version on VR mode(2D seems OK). Did slow repair already. 

Issue 1. 

If ran any SteamVR app and closed, then DCS would start with SteamVR instead of OpenXR and sometimes just crash. 

Had to manually set "HKEY_LOCAL_MACHINE\SOFTWARE\Khronos\OpenXR\1\ActiveRuntime" to null.

Then DCS would start with OpenXR. 

    Consider: Should DCS MT/ST shall set that registry to null as default of OpenXR, upon start to avoid such potential conflict? Or SteamVR always put itself as priority. Or if any setting could be done on SteamVR to avoid that entry value modified?

Issue 2.

Loading progress not reflected on headset(only shows "loading" or "reading" without any updated details/steps) while can see it on display as usual in the meantime. 

Issue 3. 

Image freezing or strangely displayed outside drawing scopoe of any loading image instead of black.