After RTS system create debit memo header only.

After RTS system create debit memo header only, but it not have debit memo line.

verified the following options:

1.  The supplier site is marked to allow RTS transactions.
2.  There is an original invoice already in AP for the item being returned.
3.  The PO and the original Invoice are to the same Supplier Site.
4.  The Supplier Site is marked as BOTH a Pay Site and a Purchasing Site.
5.  The value of the profile option "POR:  Enable Automatic Debit Memo Creation for Returns" is "Yes".
6.  The return quantity will not cause the quantity invoiced to go negative. The return quantity is be equal to the quantity invoiced.