Black dots noise glittering on folliage/Grass in UE5 only in the Shadow

Hello!

I’m trying to make grass. But I keep having those weird black dots very small everywhere on my grass when a shadow of a tree or any object affets it. When I zoom in a bit it glitters/sparkles a lot, but only in the shadow.

If I turn off shadows of the directional light it stops. But I need shadows so idk how to fix it. It only does this on my grass and nowhere else. Trees and bushes are fine.

this is what I have plugged in Normal in my grass material.

image

image

In project settings the Shadow Map Method was Virtual Shadow Maps, I changed it to Shadow Maps but the issue is still here.

Here is my material

I would appreciate some help its been a while and I still can’t figure it out. There is no info on this subject.

edit : I realised a lot of meshes I got from the fab have these dots too.

Thank you very much!