Unity builds suddenly won't display a window anymore (Windows 10)

All other VR apps behave normally, but Unity apps only show a transparent version of the window minimize, mazimize and close icons hovering on the desktop. If I press alt-enter to force full screen, I get a solid color that changes depending on what I’m looking at in VR.

SteamVR’s display mirror does work, however, but the Unity window does not.

Anyone know what’s going on? I don’t think I’ve changed anything, so either SteamVR update, driver update or Windows 10 update broke something, but what?

This is a recent (last two weeks or so) development.

Can I bump this? Is there another venue I can get support for my issue than here?

I’m really stumped, especially since it only seems to affect Unity builds and nothing else, and nobody other than me seems to have this issue…

Solved by updating the graphics drivers.

Nvidia hiccup probably because the same files were used for testing before and after.