The PDF generator won't use fields from Line Items when building PDF´s from Quotes

I´m running version 7.5.2, Sugar Version 6.5.20 (Build 1001).

This worked very well until recently. I made a new module “Samband” to register specialised variables. In Studio I related it to Quotes the same way Line Items is related to quotes. Now I can generate PDF´s from Quotes that includes fields from the custom module “Samband”.

The problem is that the PDF´s no longer takes fields from Line Items. They are listed in the menu´s in the PDF builder, but does not appear on the PDF´s.

Any idea of what I have done wrong?