Using a Mac, I have experienced several times, where the thing I am working on just zooms off away to infinity or somewhere in the pane I’m working in! It is visible in the others, and ZEA just zooms in the others, but nothing in the missing one. I then need to export and reimport into a new page to get it to reappear.
I don’t have an answer to your question, but seeing your multitude of dense surface patches I think it is time to watch @sgreenawalt ’s series on YouTube about primary surfacing. In particular related to your design: https://youtu.be/pcMIvkpxk0E
It’s hard to say from just a picture - can you post the file? It looks like the perspective viewport is also zoomed in on the object but the object is not visible. What happens if you put the perspective viewport in the Wireframe display mode?
At any rate, please run the Rhino SystemInfo command and copy-paste the result here.
In the Finder , hold down the Option key, and select Library in the Go menu.
Open the Preferences folder.
Find the com.mcneel.rhinoceros.plist file. Select Duplicate in the right-click context menu to make a copy. The copy will be named com.mcneel.rhinoceros copy.plist . You can save that plist file elsewhere and then delete the original plist file in the library.
Restart Rhino, this will generate a new preferences/plist file in the library.