The workload sometimes disappears in databases or PI dashboard.
Many agents are show dashes for workload but if the user hovers the mouse over it the data is there. If the user then clicks into workload and get to the SQL PI screen there is data there as well. If the user goes back out to the main database screen, the workload for that agent is now showing. It seems to come and go as well, an agent will show workload for a while then it will show a dash.