Black screen of death when launching game after launcher.exe executes ck2.exe

[unmerged(320188)]

I have a blackscreen of death when ck2.exe is launched. I can't even go back to windows.

This is after latest patch.
Oh Paradox why??

Atm I'm reinstalling the game clean but I think this should not have happened.

 

[unmerged(320188)]

Reinstall fixed it.