Hi Scott,
I replied to you privately as well.
Using your spec, the black box appears for me in the footer only when previewing from the designer program. But previewing or printing invoices in the data for real is working successfully for me. Since I am remoting into my workstation, I wonder what Windows 10 is doing with the driver settings through the RDC.
This isn't ideal and I have let R&D know, but perhaps try previewing your form in the OE program on a posted invoice to see whether this is OK. Maybe as you complete the form design, you could be previewing against real invoices rather than within the designer.
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Regards,
Softrak Tech Support