Freight Allocation for Inbound Shipments

JD Edwards E1 9.10

We have a situation where we received a purchase order with 6 different lines, each containing the same items. These items are set up with inventory cost level 3. Ideally, there should be 6 lines recorded in file F4111 after running R4981 to reflect each line of the purchase order. However, the system has only recorded 3 lines instead of 6. Does anyone know what conditions the BSFN Freight Allocation checks before writing to this file? We're trying to understand if this behavior is normal or if there might be an issue that needs addressing by creating a SR.

Kind regards.