Can no longer set printer duplex option (but `lpr` works with duplex)

I can no longer set duplex and other printer options (Kubuntu 16.04).

I have a Ricoh Aficio SP 4310N printer, with the matching driver selected as in the screenshots below. The only option I have under "Printer Options" is to query the printer for the default options. However, when I click that, I job gets sent with the name "Set Default Options", which fails with status "Filter failed".

Printing stuff in general works well, but because of this I cannot change the double-sided printing options.

What could be the issue, or where could I start troubleshooting?

Edit: I recently found that LibreOffice can print double-sidedly, which also lead me to find that lpr -o sides=two-sided-long-edge document.pdf works and prints double-sidedly. (I found out via https://bugzilla.redhat.com/show_bug.cgi?id=1530244.) The remaining question is why the print dialogs in all other programs, both KDE and Gnome, have the duplex printing option disabled.