Dark screen when I come closer an object

I would like to solve this issue. Any ideas ?

Thank You

Do you have Nanite tessellation / displacement maps applied to the object? I’ve seen this behavior when I have a large surface with tessellation enabled and a displacement value < 0.5.

No nanite. I tryed and retryed many times. When I disable in “Show/Lumen/ global traces and detail traces” the artifacts disappears but I lost some shadow details for example a sofa on the floor I don’t see any shadow under sofa.
This is scene with global and detail traces on


The same scene with both disabled

So no solutions ?