Blender 2.90 bugged material

[BusoLOGames20]

- Hello, it is my first publication that I make here in the forum, the thing is that I have problems with blender tools, when importing everything is fine, but when putting shading in sight: https://zupimages.net/up/21/06/q5io.jpg the material blurs and turns black and gray, how to solve this?

Error: https://zupimages.net/up/21/06/w7bg.jpg

Beforehand thank you very much

[Dotec]

Do you have amd gpu?
Try downgrading the graphic driver to 20.11.1