Hello, tjbertram. 

I wish you didn't have to go through all these hurdles. I want to ensure your concern is taken care of.  

It may seem a bit strange, but you may have a cookie on there now that needs to be cleared. What I’d suggest is just clearing your cache, cookies, temp internet files, and history, then closing your browser and re-launching. 

Once done, you can download it again from your bank's website, and re-upload it to QBO. For more info about the steps and the different supported file formats, please refer to this article: Manually upload transactions into QuickBooks Online.

If the same thing happens, please log in to your account using a private window. This can help us determine if it's a browser-related issue due to stored cache. You can use the shortcut keys below to access one:

• Ctrl+ Shift + N for Google Chrome .
• Ctrl + Shift + P for Mozilla Firefox and Microsoft Edge .
• Command + Shift + N for Safari .

Once finished, re-upload the said file to QBO.  

Then, go back to your regular browser and perform the normal task again. If the issue persists, you can use another supported browser instead.

If you run into some bank upload errors in the future, you can refer to this article for the steps to resolve them: Fix bank upload errors in QBO.

For good practice, you can categorize and match your transactions to ensure they go to the right accounts and prevent any duplicates. Then, you can reconcile your account to make sure your books are correct. 

Know that the Community and I are always here to help if you have other questions about managing your bank transactions. Have a great day ahead!