For your 2 questions:
- QVW has 43693 rows where as NPrinting preview report has 65536 rows.
- Do you use filter in QVW file? As if you do not use filter in Nprinting, it will show all data in the table.
- There no values in NPrinting report for Column called "ServiceTrackingNumber"
- Did you add the column "ServiceTrackingNumber" after you create the connection in Nprinting? If yes, then the column will not be available until you refresh the "Sources" connection in Nprinting.