When executing the katello command calling a non-existent system, an incorrect error results:
"Found ambiguous Systems [system_name] in Environment [none] in Org [Org_name], use --uuid to specify the system"
This is misleading as the system does not exist in the server. The error handling for non-existent systems have been fixed and the command should now give the correct error:
"Could not find System [system_name]".