This is working as designed. If you print or e-mail a Flow Forensics report, it only sends what you are currently viewing rather than the entire report. This change was made so that massive reports would not be rendered in PDF and crash out. If you want to see all the data for the Flow Forensics report, you can to export it to a CSV. The CSV export does print every row of the report. You can export the results to a CSV file by clicking the arrow icon to the left of "Report Results".