Hard Seam between modular peices Im making a modular bank, and when I copy them in blender there is an obvious seam.

I've tried resetting the normals and not sure how to fix this really.

any help would be greatly appreciated.

Thanks
well, after seeing that both meshes are the same u should really only use the first one using an array modifier.

The array modifier also features a merge function
check the tickbox and the seam should disappear