Printing problems after 17.1 update on my iPad Pro when using Pages software.cards on my iPad

I have printed greetings cards using the Pages app on my iPad Pro 3rd gen for several years now on various printers without problems. Since the 17.1 update printing to my Canon TS8060 printer the print settings default to A4 only no matter what settings I input to the print dialogue. I have tried every possible route to change this without success. As a check I tried printing from my iPad Air that is still operating on 16.7 software, printing is faultless. I further tried printing from my iPad Pro to my other printer an Epson XP 8600, but whilst there was no problem with page sizes, the colours were unbelievably poor even after replacing all of the ink cartridges. Again I tried printing from my iPad Air with 16.7 software with the result that I achieved true colour prints. The only difference for both printers is the software update to 17.1 on the iPad Pro creating problems that I have never experienced before. Surely Apple have to come forward with a solution to the problems they have created not least of which could be to revert to 16.7 in the interim. Has anyone else found theses problems or similar. I do note that some have been unable to even find their air printers.