SLA rule not picking the Destination Type of the PO Distribution Attribute for AP Invoice Line

We have a requirement that in case of PO Matched Invoices if freight line is entered at the AP Invoice level then it should pick the cost center based on the PO Line Destination type. If the Destination type is Inventory then Cost Center Value should be "R1706" and if the PO Line Destination type is Expense then the cost Center should be as same as PO Charge Account. To achieve that we have created the appropriate Account Rule providing the Condition of "Destination Type of the PO Distribution" Attribute. But while accounting the AP Invoice, when we check