I appreciate you for going into further detail on what you're trying to accomplish, SirMatthewIA.

It's certainly a long time to be waiting for a resolution to an issue such as this. Since you're done verifying and rebuilding your data, we can try repairing QuickBooks this time to fix program-related issues.

If the steps provided at above didn't make any difference, I suggest contacting our QuickBooks Care Support. I understand that you've already reached out to our support regarding this matter. However, this issue requires a thorough investigation that can best be handled by them.

Here are the steps to contact support:

1. Click Help at the top menu and select QuickBooks Desktop Help.
2. In the Have a Question? window, enter a topic.
3. Click Contact us.
4. Hit the Stat Messaging button.
   

Please take note our operating hours for chat support depends on the version of QuickBooks that you're using. Please see this article for more details: Support hours and types.

I'm only a post away if you have any other issues or concerns. I'll be more than willing to assist. Have a good one!