There are several reasons why your Accounts Receivable (A/R) Aging Summary Report may not match the A/R balance on your Balance Sheet in QuickBooks Online. I assume, with your experience, that it's not the first two (but I included them just in case)
I think this last reason is the most likely.
Aging method: The A/R Aging Summary Report defaults to the “Current” aging method.(even if you run the report for 12/31/22, any invoices that have been paid AFTER that date will NOT appear). You can change the aging method to “Report Date” (i.e. Even if an invoice has been paid SINCE 12/31/22, it'll still appear on the report) by selecting Customize on the report, then selecting Aging and choosing “Report Date” under Aging Method.
If you’ve checked all of these factors and your reports still don’t match, there may be other issues causing the discrepancy. I suggest consulting with a QuickBooks Online expert or an accountant for further assistance.
Hope this works...and HAPPY QUICKBOOKSING!