I'm following a tutorial on Skillshare where the instructor switches to Wireframe Shading by pressing 'Z + Wireframe':
Unfortunately when I try to replicate this on my Mac, it's only giving me an outline of the shape, and doesn't show the 16 (?) lines within it:
Why is that the case? I've checked 'High Quality Normals' under Performance just as an answer to this question suggests. And I'm using Blender version 2.93.5 so I don't think it should have anything to do with outdated versions. Any other ideas? Just want to follow along as best as possible.

