Foliage issue

jth852

Hey so I am working on creating trees and foliage and building a forest environment in UE4. This is the first tree I've created from scratch and I'm having some issues with how its rendering the leaves. I'm sure its probably a noob question but I haven't found anything about it so far. 

So I'm not sure if the shadows from the top are rendering white or reflective, but either way I'm not sure how to fix it

jth852

So I figured it out one fix for it, in case anyone has this same issue. I made the textures in substance painter so I had metal and roughness plugged into the UE4 material for that, but there was nothing plugged into spec and I guess it set it at a high value? Anyway plugging a zero into that and also adding a two sided sign multiplied with the normal map and I came out with much better results.