Hey, I just tried to debug my old project again after successfully debugging the new one and now it works. I did not change a single setting. Maybe Xcode needed some kind of initialisation from the new project.

The exact same errors (the last five) appear when I debug my macOS app and also with a bare-bone test app when I try to print. I can't see if my code is causing it, even with CG_CONTEXT_SHOW_BACKTRACE on. The print dialog had a lot of flaws during Sonoma and Ventura. It slowly gets better...