In UMP, after you added the “Performance Reports” portlet to a webpage and then selected a report in portlet preferences, saved and returned to full page it does not open the report. Instead, you just receive a blank page with no data.
Any UMP 8.x version
In the background, the specific report has become corrupted and cannot be displayed.
To resolve, please click the ”Rebuild from Template” button at the bottom right side next to the blue “? “ help button.