Pre-validated TDS invoice and Credit Memo

Can anyone suggest why this is happening?  Suppliers, at both the zero level and the site level, are set up with the Create pre-validated TDS invoice and Credit Memo box flagged.  When the invoice validation process is run, the TDS invoice and the credit memo are created for the correct values, and the validation of TDS invoices process is generated, and the journals are successfully imported.  However, the TDS invoice and the credit memo both have a status of 'never validated'.

We are in version 11i

Thank you.

Kathy