Custom Print: I'm having issues with pulling in line item data from a Line Item BP.

It appears that the xml schema generated is not accurately, as the fields used in the Line Item List Tab Name are not available in the schema. Furthermore, details of the line items themselves are not being pulled in by the data connection. I'd like to be able to include this information in a Print. Any ideas?

The schema is being generated by the Schema For PDF function in the bp config and I'm using Livecycle to develop the print.