At times you might see a refresh report banner in OLAP reports like the following. This could be due to Report Calculation Improvements:
In order to calculate exactly what customers need and are regularly using quickly, CloudHealth will no longer pre-calculate reports which have not been viewed in over 30 days. A banner will be displayed on reports that have been marked as unused and a button will allow you to update the data and build the report. To update the data click the "Refresh report" button.