Weird Black Lines

I’m getting some weird black lines on my landscape and i’m not sure what it is.
You can see it in this video
https://streamable.com/8jf0ct


Also there is an attached image. Any help would be great.

What material are you using?

I made a landscape material, with layers.
test


i changed the black layer to purple thinking it might have something to do with it, it was the same color but ig not.

Switch to the default material, the one with the checkers, and see if you get the same results check your shadow/light settings.

Virtual Shadow Maps in Unreal Engine | Unreal Engine 5.0 Documentation

I created a new project, new landscape, and new material. Same problem i used textures instead of colors, no change.

I’d start with the light settings and shadows. I can try to reproduce it the morning, I don’t have time at the moment. Are you using Lumen with the default lumen and nanite settings? I probably should have asked that first, but the shadows don’t say preview, so I’m assuming. I don’t have all the names of the settings memorized and I don’t have the engine handy at the moment.

Will get back to you.

Cascaded shadows.

I solved this by setting this to shadow maps not virtual
test