I have a project that requires that I use double sided photo paper but when I try and set this up I lose the ability to duplex print as soon as I select glossy photo paper. Is there any way around this?
This sounds like a printer or printer-driver issue, not LO’s.
If your document is rather short, you can fool the printer by setting it to manual feed and presenting your sheets one face after the other. I admit it is rather boring with 50+ pages.
The restriction is probably caused by the stiffness of photo paper, making it difficult to travel through the mecanism without jamming. In case your photopaper is not too stiff, try setting paper type to plain (or some other choice) and manually adjust colors settings to match the actual paper properties (saturation, contrast, gamma, hue, …) unless you get bad rendering.
I agree that it’s probably a system or printer driver issue. My guess is that the printer manufacturer or driver developer has never seen two sided glossy photo paper and therefore did not allow for it in the driver. An alternate to @ajlittoz 's answer would be to print all the odd page numbers, flip the output stack and then print all the even pages.
I never use this alternative because I fear the toner (my printer is laser based) would grip together two sheets. They would then be driven together inside the printer, skipping a phsical page or causing jamming, then resulting in desynchronisation between the sides sequence. In the end, you trash your stack. Considering the cost of good-quality glossy paper, that’s a real waste.
The risk with liquid inks printer is also likely to be high with humidity making paper sticky.