Additional row with hash entry appearing in report

Dear All,

We have a Delivery report on top of MProvider .We use navigation attribute (Actuals goods issue) .That is Delivnum__Actualsgoodsissue Nav.att.

After executing the report,I can see two rows as shown in the below example

Can anybody tell me why hash value is also appearing.User does not want to show as two rows.

When i checked the Ptable ,there is no hash entry for the del. num 1001 for example.

regards

Pradeep