I have setup a POST webhook that sends "all parameters" when an expense report is approved.  The Category_Name is correct on the Expenses section, but Null on the Line_Items section.  The same problem exists if the Expense is split.

"expenses":[

"receipt_name":"",

"start_reading":"",

"category_name":"Dinner",

" line_items":[

{

"tax_amount":0,

"item_total_formatted":"$2.00",

"amount":2,

"line_item_id":"1369653000000095325",

"category_name":"",

"tax_name":"",

...