Thank you for joining the thread, @Lady2bug.

The bank and QuickBooks balances don't match because of the manually created transaction. When reconciling, compare the list of transactions on your bank statement with what's in QuickBooks. Once done, we can manually reconcile the transaction in QuickBooks Online.

Here's how to manually reconcile:

1. Go to the Chart of Accounts.
2. Select the appropriate bank account, then click View register under the Action column.
3. Find and choose the transaction.
4. In the Check column, click the field repeatedly until you'll see an "R".
5. Once done, click Save. 

You can also refer this article to check issues when reconciling: Fix issues when you're reconciling accounts.

Don't hesitate to leave a comment below if you're referring to something else or if you have any other questions. Have a good day!