None of the shade views work - CorelCAD 2019

Hello,

I have CorelCAD 2019 and just started using it. I made a cylinder, but the 3D shape is solid black when I turn on the shade views, it shows no light or shadow. It looks exactly the same in any of the flat or Gouraud views. The 3D and Hidden views look as expected, but these are very limiting. I will eventually need to see a shade view.

Am I missing a setting somewhere?

This is on macOS 10.15.

Help!

Edit: forgot to upload a screenshot.