I have tried what you have suggested. However, I don't think this is an issue with the PDF viewer. I tested both Adobe Acrobate Reader, as well as a Chrome browser. I also tried to export the report to excel, and rtf formats. All reports in PDF, Excel, and RTF are blank.
When I use the print dialog and select "Preview" the report tool opens and I can see the report with valid data. There seems to be an issue only when I try to save the report to any file format to my computer.
For reference I am attaching a reference of when I try to open the PDF in Adobe. I'm also going to include an image of the upper corner of the same report when I do a "Preview" to show that the report seems to generate correctly (See Example_Report_Corner.jpg)