that texture you’re plugging into Metallic, and the other one you plugged into Specular/Roughness/Emissive - what do they look like? I suspect you’re misusing them
[edit] oh wait I thought they were parameters.
just a black texture? try disconnecting it from Roughness, see if that fixes it
Now I am wondering how to get into UE’s settings because it is doing something weird. It is painting entire squares and the W, A, S, D, keys are not working. I think it is a settings error.