I don't see shadows in the "render" mode

Rhino
1

Hello,

What’s wrong with my settings - I don’t see shadows in the “render” mode.
The file is attached.
sum.3dm (13.9 MB)

2

Hi -

Select the mesh and run UnifyMeshNormals.
-wim

3

Amazing. I’ve had meshes with normals not unified many times but it never caused this effect.

Thank you very much!