When using the UMP USM Reports menu items (Top N, Situations to Watch, Group Trend) after generating the report only a blank screen with the symbol for "PDF" is displayed.
This is caused by a browser setting that prevents PDF files from being displayed in the browser.
Why do my Reports only show a blank page with the PDF Symbol?
Resolution: The Chrome Browser has a setting called "Download PDF files instead of automatically opening them in Chrome"
Found in Settings > Advanced > Content Settings > PDF documents
This setting must be disabled. Once this setting in the customer's Chrome Browser was disabled, the feature worked as intended.