If you want an A/R aging report as of a certain date, you should run the Aging As Of report. This report is available from the Reports menu > Aging as well as from the Report Center > Accounts Receivable category. This report provides a reliable way of knowing what your A/R balance was as of a specific date.
You can view selective information on this report by applying the relevant filters to it such as the As Of date. From the Report Center, you can also apply the additional Invoice/Payment Date combo filter with the desired As Of date. Using the Invoice Date or Payment Date As Of filter independently will produce incorrect results.
On the other hand, the regular aging reports are not designed for date filtering. When you run those reports, you get the current aging and NOT the aging as of a certain date.