Epson XP-4200 Not printing duplex even though OS, CUPS, and LO are setup for it

Greetings: I am perplexed at this point. I am running LO Version: 25.2.3.2 (X86_64)
Build ID: 520(Build:2)
CPU threads: 8; OS: Linux 6.14; UI render: default; VCL: kf6 (cairo+wayland)
Locale: en-US (en_US.UTF-8); UI: en-US
Calc: threaded on Fedora 42. My printer is an Epson XP-4200 MFP using the Epson drivers from their site. Only LO has the issue of not printing duplex even though KDE Printers, CUPS and LO are setup to print duplex. Other apps DO print duplex without a problem.
Please advise.
Thanks,
Michael

maybe Writer will not print duplex (2-sided) pages despite proper printer setting and LO print setting - #7 by rebrinson