I uninstalled my printer on the latest build and now printing to pdf crashes rhino and none of the lineweights are working properly. I reinstalled rhino several times with no luck. The issue is consistent across files old and new. I tried an older build of rhino and the issue persists.
The issue is not present in rhino 8, though it is not sufficient for my current workflow.
For those with a similar issue in the future, this issue seems to stem from having no printer installed or removing to zero printers and the mac print to pdf causing a bug in rhino.
If, like me, you are not able to install a physical printer in its place. I used this virtual printer which removed the issue for me: