I’ve posted this bug, months ago, and it’s meaningful because we need the OpenGL mode to be accurate because Raytraced mode is too slow for aligning materials/textures/mappings. The top is not going to map anyway, but that’s okay, the side is the issue. To examine this, it’s like that material is applied, but Rhino thinks the mapping is not necessary because it’s out of view. I’ve seen this behavior before with transparencies, which I think were fixed.
Rendered (OpenGL) View:
[I wish we could map textures, repeating along/per NURB H/V’s because it’s dozens of times faster than anything in Rhino. I checked out what I think you were working, on, and it;s not the same.]