I understand the challenges you're facing while migrating a company file from QuickBooks Online (QBO) to QuickBooks Desktop (QBDT), ArtyFacts123. 

I appreciate you for performing the steps to resolve the migration process. Since the issue persists, I suggest contacting our Customer Care Team. This way, they'll be able to do a screen-sharing session and check if there are no steps were missed. 

Here's how to reach them:

1. Open QuickBooks Desktop.
2. Go to the Help menu, then select QuickBooks Desktop Help.
3. Click Contact Us at the bottom.
4. Enter a brief description of your issue, then select Let's Talk.
5. Choose a way to connect.

I've added this article for more information about moving your data from QBO to QBDT: Move your QuickBooks Online data to QBDT. 

Keep your posts coming if you need further assistance with migrating your data from QBO to QBDT. I'm always here to help. Have a great day.