Possible recent Atlassian Cloud upgrade issue
Hi there! The upgrade over the 9-10 May could have resulted in a problem that may not be immediately apparent. If the Webhooks Addon is disabled, then JIRACloud will not issue Events that JEMHC can hook into to generate notifications. If JEMHC Admin > Auditing > Events is showing traffic in the last 24hrs your instance is fine. See the following link for more: