It has been noticed that immediate alerting not working when a contact is added in an alert group.
It is working fine when alert sent to individual email. (Issues is only when immediate alerting is selected)
Release : SAAS
We found an edge case not captured in testing -- when a group member is set to immediately, they will not get an alert. We are working on a fix to go out early next week. A fix was created and verified working fine by the customer.