Monitor Groups Summary is empty for Monitor Groups that contain more then 1 Monitor and it says: "Check the URL". But the other tabs (Availability and Performance)show the correct Monitors. We also have some Monitor Groups that contain only 1 Monitor and these Monitor Groups show the correct Monitor on the Summary page and do not show the "Check the URL" message.
Stopping/Starting AppsManager 8 and the Server did not solve the issue. Han Balk