DEBUG com.automic.webui.vaadin.framework.login.MainLoginController - Decision mapping failed for user <user> at <AE>:100.
com.automic.decision.communication.authentication.AuthenticationException: Specified Automic system not found.
This indicates a problem with the user mapping inside Decision.
Log into the Decision Modeling Studio Client.
Go to "Management" and in the User Management box, right-click 'Automic Integrated Authentication'.
Select the Automic System and make sure the 'System Name' EXACTLY MATCHES the system name in the ucsrv.ini file from the AutomationEngine.
Once this is done, the Decision perspective shows up.