If the only way to fix this is to update or reinstall Windows then I am doomed. I don't understand I don't have this problem in Odyssey then how come I have this in Valhalla? Isn't it the same game engine?
Happened to me as well. I bought the game a few mins ago. Since my account are link to steam games the "Store" tab is hidden and I have to bought it through browser. This is my first time buying something from Ubi store too.