Using Print PDF or Print Image in Shortcut app generates a "UIPrintErrorDomain error 3" message and does not print the document. No hardcopy sent to WiFi Direct printer. Error message received with iOS 15.5 and iOS 15.6. This same Shortcut app worked with older (unknown) iOS version.
Shortcut app print error
I've recently set up a shortcut that involves printing and receiving the same error. Everywhere i look online tells me Apple never fixed this issue