Context is NULL'ed when trying to open DFF for 'Additional Line Attribute Information'

Hi,

DFF for 'Additional Line Attribute Information' does not open.

 

The structure column of the 'Additional Line Attribute Information' DFF is CONTEXT. When we click the DFF in Quick Sales Orders form ([ ] field), it seems that the form sees this value as NULL, even though a correct value can be seen in the database.

 

In all our test cases, after we press "Save" button for orders that do not display DFF, the CONTEXT column in OE_ORDER_LINES_ALL table becomes NULL! How can we check what NULLs this column? We could not find anything that might have caused this.