Transfer order not calculating cost price correctly AX2009

I purchased one item with two separate batch number and Serial number with different cost price. Inventory model group is FIFO used. I also changed Inventory dimension group as per requirement.

Item A, Batch # B001, Sr. number S001, Qty 1, Cost price $100

Item A, Batch # B002, Sr. number S002, Qty 1, Cost price $500

Cost price allocated based on above transactions.

Created Transfer order ( From Warehouse 11 to WH 21)

Transfer order line, Just entered qty 2 and reserve automatically

Picking list registration

It;s created two spearate line based on batch and serial number.

I shipped and received the transfer order.

Now cost price is update # 300 each.

Item A, Batch # B001, Sr. number S001, Qty 1, Cost price $300

Item A, Batch # B002, Sr. number S002, Qty 1, Cost price $300

I did inventory recalculation but no luck.

I also tested same scenerio into AX2009 and AX2012 vanilla and it's same.

Any suggestion will help me lot.

Thanks

Raj