It sounds like you are very learned about these glitches
For me this is the first one I have come across so this is the first one that interests me. The Apple people have been very helpful and have provided a way through while they check out my problem
As for PDF, yes I tried that but to no avail
The previous update of Pages ~ well I was fortunate I did not get around to updating Pages to 6.3.1 on the iMac and thus was able to print out the church's newsletter on that.It is 6.3
And the printers I have been using are a professional Canon. I did not install it. That was done by the company so I have no knowledge of the actual driver and then an HP Laser 1536
Trust that answers all your questions
God bless you!