Duplex Printing is happening automatically

Why is Dorico printing everything duplex? I have every duplex / two-sided setting turned OFF, both on my printer, and inside Dorico.

It only prints one-sided when I use the System dialogs on the bottom left, and not Dorico’s native dialog menu.

Any thoughts as to why this is happening? I’ve never had this issue before.

Printer is Brother MFC - L2717DW
Screenshot 2023-12-21 at 1.05.41 PM
Screenshot 2023-12-21 at 1.06.25 PM

This didn’t solve anything
My Mac settings are set to one-sided printing

Try this: How to Disable Two-Sided Printing On Mac - Techbout