I see you want to resolve unmatched balances in your account, @RDR5.
Do you presently use Quicken? If so, I advise reaching out to them. They're able to investigate the cause of the issue and offer you the most effective fix.
On the other hand, if you use QuickBooks Desktop, I suggest looking through your bank statement and comparing it with QuickBooks. Then, you can manually upload the missing transactions. See this guide for the detailed steps: Download bank feed transactions in QuickBooks Desktop.
If everything is good, you can also check this article about reviewing and matching transactions: Add and match Bank Feed transactions in QuickBooks Desktop.
Keep in touch for more help regarding banking or QuickBooks in general. The Community is available 24/7 to back you and your business. Keep safe always!