Typically you would have Set Aging enabled for your invoices. Otherwise, you won’t get any aging information in the Aging column. You might want to disable it on Quotes, Estimates, etc. because you aren’t looking for past due information on those invoices.
Were any errors reported to the tmp/log/php.log file? If so, I’d be interested in looking at that file. You would need to zip it in order to attach it.
I’d also be interested in knowing what happens if you set the Invoice INV PREFS record Set Aging field to Enabled.