Why are the large cylinders 'out of view edges' not being shown here?

For some reason, when in wireframe mode, the larger rectangle edges that are not visible to the camera are not shown. For example the cylinders back vertical edges are not being shown, neither is its lip, at the top. The other small cyliners edges are all shown fine though.

What could this be?? I have so far looked into back face culling and double sided lighting and determined its not either of them. Am at a loss.

Am on Maya 2025. I would appreciate any help on this.