UE 5.1 - Texture issue - Weird horizontal lines

Hello,

I am encountering some weird texture issue in my unreal 5.1 project.
As you can see below I have a kind of horizontal lines appearing everywhere in my level which is really disturbing to work with.

Has anyone any idea on why this is happening. Also this does not happens close to the camera, you can see “circles” like LODs where it starts to appear and appear more and more.

When playing:

Is there any fix for that ? I have tried adjusting my lighting, my material but even with a really basic material with no normals it still does this

Does this help: [Unreal Engine] - Blurry Textures / Materials & Mipmaps [Fix] - YouTube?

This does not help. I found that it seems to be somehow related to virtual textures.

I see, did you end up figuring out the issue?

Yeah, I noticed the same.

I have not figured out the issue yet and I’m kinda stuck with horrible looking landscapes.
It seems that it could be related to subsurface shading model:

Without subsurface shading:

With subsurface shading: