Why the grass looking too black?

[sabbir]

I am using Unreal 4.25 with RTX enabled.
For grass i am using Megascan Grass, Problem is after painting the grass using foliage its looks like this when the camera at certain distance

But when I close the camera the grass looks like this

[ugmoe]

That is happening because of the Level of Detail (LOD) setting. If you double click on the mesh, you will find this setting in the details panel.

I’m not sure exactly what’s wrong, if you need help, post a screenshot of your LOD settings

[sabbir]

ya i really need the solution, this problem is bugging me for several days,
btw i only have one static mesh under LOD, Since i want to cover a large area using grass and i have plan to make a video of it, so i removed all the LOD. Here is all the screenshot