I had hoped this would be fixed in H18 or be an issue with Redshift.
It turns out neither is true.
I made a new Scene in H18 containing only a camera object. Redshift is disabled (not loaded at all).
I still have the same issue. Selecting the camera object in viewport, treeview or network will flip the ortho views.
I find it hard to believe that this slipped QA, so I need to know if anyone can repro.
Edit: I tried again and it happens in maximized ortho views as well, with any scene content.
Info: I am running a dual screen setup Win10 Pro 64bit, 64gig RAM, Graphics card is a 2080 super, but it happens on my other work station as well so I don't think it is in any way system related.
Scene is attached.
Here is the video I recorded in H17.5 some time ago, when I still wasn't sure if redshift caused it.