View Map in Event Management doesn't work properly and no CIs correlated are showed.DescriptionEvent Management " Service - Application Services" and " Event management - Operator Workspace" the View Map doesn't work properly. No CIs correlated are showed. Steps to reproduce : Log into the instance https://<instance-name>.service-now.comChoose Event management - Services - Application ServiceOpen a business service Click on ViewMap tab Some time the Map populates and some time the Map does not populates and we can see the below warnings in the node when the Map is not populated. Default-thread-10 10AAD90901E42010FBCBFAB076D4835F txid=7bab5d4d01e4 WARNING *** WARNING *** BusinessServiceTreeBuilder: Multiple root nodes.Default-thread-10 10AAD90901E42010FBCBFAB076D4835F txid=7bab5d4d01e4 WARNING *** WARNING *** BusinessServiceTreeBuilder: Multiple root nodes.Release or EnvironmentNewYorkCauseWhen we click on the View Map, on the backend we are doing queries on sa_service_group_member, sa_m2m_service_entry_point and then em_impact_status and ending up with taking the severity from these record in that process we get the multiple root nodes warning.ResolutionThe issue is related to the wrong calculation for service groups The solution is to add the attached script include and run it with the help of scheduled script. Script Include Scheduled Script Note : You can run the script on a weekly basis and in case if you are facing the issue frequently you can increase the frequency of scheduled run.