Those are 2 different issues. The materil doesnt have those slors, because blend mode is set to translucent, and this translucent type doesnt support those material attributes. If you scroll down to the translucency section, you can change its mode to non directional, directional forward rendered, and there are a few more.…
Having this issue; I don't know what might be causing this. I am getting a texture streaming pool warning whenever I open the project so I increase it in the output log command. Would this have any reason why the roughness, metallic and normal slot are greyed out?