Just so I'm understanding this correctly, the Apple framework is used in both the "Save as PDF" as well as the "Save as Adobe PDF" options?
The customization of the PDF I've been using is specified in the Adobe Distiller options as there aren't really any similar ones available in the Apple Save as PDF that I've found.
The error dialogue box does have an Automator icon, so I'm assuming that must be used somewhere along the line to pass along the commands to Adobe's distiller perhaps?
I'm really trying to figure out what the problem might be, as creating PDF Contact/Proof Sheets from within PM5 is something I need to do on a daily basis.