Reports are normally a “snapshot” of activity ending at the time you generated the report. The Web Activity Report, and custom reports based on it, allow you to run a “live” report that is updated continuously, with the most recent activity at the top of the grid.
To generate a live report, click the date and time box on the top left corner. Select Live from the dropdown menu and then click Apply. Remember to click Generate Report at the bottom right to run the report.