We gone through the files you sent.
One of the order was partially filled and cancelled.
Since the status is 'cancelled' , UpsoxNet ignored that order details while calculating NetQty.
Download the analysed file from here https://email@example.com
Replace firstname.lastname@example.org with your email id in the above url.
We are testing to include 'cancelled' order with filled_qty >0 in the 'GetNetQty'.
Let you know any updates.