Unreal Engine foliage rendering? issue (gray texture)


Hello!
I have a big problem about my foliage in LV.
I try to build lighting and control any other option(like ray tracing, shadow etc…), but I can’t solve this.

If you know of an issue where the foliage has turned grey, please let me know.
It’s fine when I’m far away from foliage, but when I get closer it turns gray.

plzzzzzzzzz ㅜ.ㅜ