Thanks for getting back to us, @ksholgate.

Even if the data is damaged, QuickBooks doesn’t have the power to delete transactions during updates. Also, reverting back to the previous release is currently unavailable.

Let’s check the Audit Trail Report to see if someone else made the changes. Here’s how:

1. Go to the Reports menu and select Account & Taxes.
2. Select Audit Trail.
3. Choose the dates in the report’s page.
4. Click Refresh to update the report.

Once verified, re-enter the 5 transactions in QuickBooks with the exact information. Then, perform a mini or special reconciliation to resolve the incorrect ending and beginning balances. 

Check out the following articles for more information: 

• Zero or incorrect Beginning Balance in the Begin Reconciliation window.
• Reconcile previously deleted and re-entered checking or credit card transactions. 

That should get you on the right track.

Keep me updated on how this goes or if you have any questions. I’m always here to help. Take care!