I found the solution on the forum, in another post.
ometimes these materials when imported from quixel or market place they are set to “Fuzz” or some otherthing when they should be set to “m_ms_default” which is what is giving off these pitchblack shadows. Change the material to foliage or default material when you go into editing the mesh. Even in the material Property overide section you can change it from “cloth” to something else and it will help. This will get rid of these black void shadows.