João Huller

I solved my problem by putting the Additional Normals layer below the Base Color layer.

This is my first time using 3d coat for texturing, and while i was testing the materials in my model, i came across this thing where the material metalness (?) or glossiness just dont apply to the whole preview window, but just for certain parts in a weird square format. I modelled and uv unwrapped the model inside blender and imported it with the normal map (Normalmap[ext]) and them painted more details in a different layer (Additional Normals). This problem only happens when i unhide the Additional Normals layer, if its disabled, then the material works as expected.