Thanks for getting in touch with the Community, Dean B. I appreciate your detailed information.

Since QuickBooks is continuing to crash after performing each troubleshooting step you've done so far, including using the QuickBooks Tool Hub, I'd recommend getting in touch with our Customer Care team. They'll be able to pull up your account in a secure environment, conduct further research with you, and create an investigation ticket if necessary.

They can be reached while using QuickBooks.

Here's how:

1. In your top menu bar, go to Help, then QuickBooks Desktop Help.
   
   
    
2. Click Contact Us.
   
   
    
3. Enter a brief description of the issue in our Ask a question (or tell us what's wrong) field, then hit Continue.
   
   
    
4. Select We’ll contact you for a callback or Message Us to start an instant messaging session.

Be sure to review their support hours so you'll know when agents are available.

When you get in touch with an agent, I'd recommend directing them to our article about QuickBooks crashing unexpectedly, as your situation sounds identical to it. One of the potential occurrences with this known behavior is for QuickBooks to crash without displaying an error in the middle of working.

Please don't hesitate to send a reply if there's any questions. Have a great day!