User-defined invoice holds in Payables are not automatically released

We have observed that for certain invoices, particularly PO-matched invoices, user-defined holds are not being released even after the hold release conditions have been satisfied.

For example, when the line-level DFF is null, the WHT_Null hold is applied as expected. Once the DFF value is populated, the user-defined hold should be automatically released. This functionality works correctly for some invoices; however, for certain PO-matched invoices, the user-defined holds are not behaving as expected and remain unreleased despite the conditions being fulfilled.