Right…the participant_jbh_waiting event fires when JBH is disabled (a user can’t join a meeting without a host) and the waiting room is enabled. We’re trying to count the number of users who are waiting for a host to join, which is possible using the participant_jbh_waiting event; however, there’s no corresponding leave event to know when a user quits waiting for a host to join. My issue appears to be a duplicate of Is there an meeting.participant_jbh_waiting_left event?. This has been submitted as a feature request.