Blocking graph has not been updating the few days (227253)

The data source of the graph is different from the blocking list (table), the graph of the data is from the collection SQLConnections (Session List), which runs  every 5 minutes by default, it is possible to see the discrepancy between the chart and blocking list due to the design, there is an enhancement request submitted to address this issue (SOSSE5925). It needs to be verified if  the default setting “show data for last …”  was changed to a long time, so the x-axis looks as it has no update, therefore change it  to 5 minutes to avoid the confusion.