I understand how it feels when the recommended troubleshooting steps didn't work on your end, PeakAdvisers.

I appreciate you for trying the steps shared by my colleagues. Since the same issue persists, I'd recommend reaching out to our phone support team. One of our agents has the tools that can isolate the issue further. You can contact them via the Help menu and then selecting QuickBooks Desktop Help.

Once everything's good, you can re-create the invoice.

I'll be around whenever you need help customizing invoices.