Strange Shadow on mesh? I am doing this Blender Guru turorial. When I look at the metallic text I see this "shadow" on the inner sides of the text (see image). Now I am not certain what is the reason for this "shadow" ? Is it a shadow or did I do something wrong with the UV unwrapping (something that is very new to me) ? My file is here, the textures are packed into the file.
As @Carlo suggest, the straight line is not a shadows, but the texture instead. 

By changing size in the Mapping Node, you are distorting the image and the UV Map doesn't match as expected.


If you toggle muteM Mapping Node, your texture is correct.



 

In the Blender Guru Example, the Mapping Node is applied to the Noise Texture to achieve a "scratchy" effect.