Hi there, Curlyq263.
Welcome, and thank you for coming to the Community to get help with your uncleared invoice (bills) and check transactions last year. I'll help you check this out.
Based on how you described scenario, the Accounts Payable Aging Summary report shows no balance, but when you dig down to the balance, it appears that some transactions are not linked.
To resolve the link issue, we can run the Verify and Rebuild Data Utilities or the Quick Fix my file or QuickBooks File Doctor in the QuickBooks Tool Hub. The detailed steps can be found in the articles below:
I'll be right here if you need further assistance about your report and transactions.. Always remember to back up your company file before doing anything that would have a great impact on your records.
Take care and have a good one!