Thank you for laying out the details of your concern, @bookish_29.

Please know that this isn't the experience we want you to have. I'm here to shed some light on your concern about merging accounts in QuickBooks Online. 

To begin with, let's try logging in to your QBO account using a private window. Thus, there are times when too much historical data from the browser causes discrepancies that affect the view and performance of your QuickBooks. 

To help us determine if this is a browser-related issue, feel free to use either of these keyboard shortcuts to open an incognito window depending on your browser:

• Google Chrome: Ctrl + Shift + N
• Safari 11 or newer: ⌘ + Shift + N
• Mozilla Firefox: Ctrl + Shift + P
• Microsoft Edge: Ctrl + Shift + P

If it works, you can go back to your original browser and clear its cache to start fresh. You can also use another supported and up-to-date browser to narrow down the results.

Moreover, please ensure that you save the accounts under the same account type and tax form section (detail type). This way, you can combine two different accounts. 


You can check this article for the detailed steps and information: Merge duplicate accounts, customers, and vendors in QuickBooks Online.

Please let me know if you have other concerns with merging accounts in your chart of accounts. Tag me in your reply, and I'll sprint back into action. Have a good one, and keep safe!