Welcome to the Sage 100 Support Group on Community Hub! Available 24/7, the Forums are a great place to ask and answer product questions, as well as share tips and tricks with Sage peers, partners, and pros.
What's the setting value for "Automatically Recalculate Aging" in Accounts Receivable |Setup |3. Credit? There's also a button in the Statistics tab to "Recalculate Aging"
Both the Aged Invoice Report and Statement Printing will recalculate the aging buckets. Printing or previewing either will update all the customers printed at once using the Aging Date or Age Invoices as of on the report window.