A1 missing page size after update

I have been struggling to print anything above A3 to scale since the update the other week and the drop down page size for A1 and A0 are missing.

when I try to print then select pdf size or fit the (either don't work) preview page size doesn't change or match (I believe it is permanently A4 size) on the printer paper size or the printer settings.

can someone please help as I don't want to remove it but I am wasting paper when trying to print now and I never have had this issue before the update.