Anyone having problems with A/P payments showing up on the A/P Detail Aging Report?

I usually write about 17 checks directly out of the pay bills list a week; however, now I have noticed that only in a few cases the checks are showing up on the A/P detailed aging report (and aging, by-the-way).  The same vendors do not show up this way every week, although, the same G/L account is usually affected, i.e. shipping invoices paid.  I am not sure whether it is the vendor or the G/L account number that has started the problem.  I have deleted the specific check and reposted it using the next day as the check date, but