The Failed Jobs view is similar to the Execution History query except that it only retrieves instances that have failed.
If instances are found that meet the criteria, adTempus puts a failure icon next to this view in the Console Tree to draw your attention to the view. Unlike other views, this view is refreshed regularly as long as the server is connected, even if the view is not active.
When you click the Acknowledge button, adTempus clears the list of failed instances and sets the starting time to the current time so that it will only watch for failures you haven't already seen. adTempus will remember this starting time the next time you run the Console.