As I am retarded in UE, I am not sure if this is what you mean?
Anyway, I am actually after the look in the material thumbnail, as that is what closest resembles what I see in my other packages.
My confusion is why there is this mismatch. Is it just how it is, or have I done something wrong somewhere?
In case it makes a difference, the metallic map is not pure BW. The dirt has grey values.
Again, thanks a lot for taking time to help out 