Resolution: By default the RTmon's monitor_scope is "/*" which means it will only match RTclients whose unique subject is a single hierarchy (the first level of the hierarchical subject namespace such as "/foo"). To see an RTclient's unique subject which has multiple hierarchies, such as TutCommandParseStr("setopt unique_subject /foo/bar"); , change the monitor_scope to "/...". This will match all names, such as "/foo/bar", and all monitoring information will be enabled, so all filtering is disabled. See "Project Monitoring" in the User's Guide for more information on this option.