Page order? "Offset property not found" when printing using a windows driver. Do not understand.

Starting plugin Print using a Windows Driver - 13:52:31
Printer: 35PPM PCL
Parsed printer: 35PPM PCL
Job owner name: %1
Parsed job owner name: 000060490
Error retrieving the print page order: The metadata file is invalid: Offset property not found.
File processed : job00ZT7V2JL2R9S1498543A6.dat, size: 4353 bytes
Plugin Print using a Windows Driver completed successfully - 13:52:31 (elapsed time: 00:00:00:031)

The job is one page long. I am not sure where or why I would specify a page order, how this relates to metadata, or what offset property is being referred to.

If a metadata file is present when printing passthroug to ‘Print using a Windows driver’, the plugin is looking for extra info in the metadata file. So I guest you have created one somewhere in the process but it is not accurated with the file that is printing. You can try to delete the metadata file just before printing, by adding a Manage Metadata File plugin and select Delete.