GPU Tessellation not working properly on Rhino WIP on Apple M1

Some geometry is not visible when GPU Tessellation option is ticked in Preferences > OpenGL > GPU Tessellation. But zooming in and out works very smoothly.

File is correctly displayed with GPU Tessellation turned off, but then zooming in and out, selection, etc becomes too slow and broken.

Test file and screenshot for the same attached.
Rhino WIP 8.0.22018.12306 on Apple M1

Test 01.3dm (2.1 MB)

If you are testing out Rhino 8, I would recommend running the TestMetal command to switch over to Metal as the underlying display technology. We will be making this the default in a few weeks.

Thank you.
With TestMetal on, it is working as expected