Add Landed Cost Detail (PO302000) to Purchase Receipt Report (PO646000) but report only print the second line?

Hi All,

I am working on purchase receipt report (PO646000) and I want to add landed cost to the report. I have already joined 2 tables POReceipt and POReceiptLandedCostDetail as below. But I dont know why it’s only print the second line 

Btw I have tried to put it header session or detail session but it’s still show the same.

Pls advice me if u have any idea.

Thanks in advanced.