I have some hard time applying a texture on an object.
Here the object in render preview
Here the object in Raytraced preview
Here the object properties
As the object is solid I use Match Mapping from another object that is more simpler. This simple object is first unwrapped, a texture is calculated using procedure described here
I saw lot of discussions about textures problem, unwrapped geometry with bugs, flipped faces …
As there is a good object representation (render view) is it possible to use the mesh behind it instead of ExtractRenderMesh?
Here a Rhino 7 version
bug report.3dm (7.2 MB)