Don't think it will work in the garden - what are your options? In my Samsung Colour Laser I go into Printing Preferences and under the heading Double Sided Printing (Manual) there are 3 options - None, Long Edge, Short Edge. I have None selected. Maybe after the change try switching off (your printer) and then back on again. Can't guarantee that will work but worth trying.
OnePlus 5T review: Hands-on