Hello there, @samraustin.

We can work together on reviewing your reconciled transactions in QuickBooks Online.

When transactions are manually imported, the bank balance and the balance in QuickBooks will not be the same. If the account is linked to online banking, the bank balance will only be changed or updated. The added or matched transactions will also affect the QuickBooks balance.

Here are the things to review in reconciling accounts:

1. Review the original opening balance.
2. Check your bank statement, and make sure you're reconciling the correct month.
3. Double check if there are matched transactions.

Furthermore, If you need to edit the transaction, you can follow these steps: 

1. Click Accounting.
2. Go to the Chart of Accounts tab.
3. Select the bank account, then click View register.
4. Look for the transactions and check if you can see R in the column. 
5. Select the transaction and repeatedly click the R status until it's blank or unreconciled. 
6. Click Edit. Make the changes and then save.

You can go back to the register and manually reconcile the transaction by clicking the Reconciliation status column to, then click Save. 

Also, editing reconciled transactions may result in discrepancies between your previous and next reconciliation balances. I recommend contacting an accountant to help you manage the reconciled transaction so it doesn't mess up your books.

After that, try to reconcile the new month and see if there are any other issues. If there are any errors, you can use this article to help you correct them: Fix issues for accounts you've reconciled in the past in QuickBooks Online.

Please let me know if there is anything else I can do for you. Please leave a comment, and I will respond as soon as possible.