Layout Orientation Redefaults To Portrait If Printer Not Assigned

If the specific network printer is unassigned and so a new layout tab has None as a the printer but it is set to landscape manually or via Grasshopper creation of that tab, when I go to print with my actual printer at home or in the office it resets to default portrait as soon as the print dialog comes up. That means I can’t print a series of layouts but must do them each manually one at a time. Clearly if a layout is set to landscape mode, no printer should come up in portrait mode so this is a bug.

Sorry, I’m not following.
Maybe that’s why no one else has replied either.

Can you please describe a sequence I can follow that illustrates the problem?