In Printer Properties it’s possible to make subtle changes in layout alignment which most people would never spot but which would screw up the tabulators.
If the printer layouts had been modified in good faith to work better with the tabulators but a software update comes along and resets the printer layout to default settings the night before the election, well there you go.
What I’m saying is, it’s either something malicious and intentional, or it’s negligence in permitting a software change just prior to the election with no chance for testing.
For folks who have military time and spent days in exercises....it’s generally common a week prior to the exercise, you pull out the equipment...run it...test it. If you came to an exercise with 40-percent non-functional hardware, there would be officers and NCOs fired/heavily disciplined.
I get the impression no one much fears failure with voting management in Arizona.