Agent Notification in CSP not firing

Summary:

We added notifications in CSP but it is not firing

Notifications for agent:

Moved referred candidate in the phase but no notifications received neither in email or bell icon

Content (please ensure you mask any confidential information):

Checked in CCC there are similar concerns raised but no solution provided. Please help.

Version (include the version you are using, if applicable):

Code Snippet (add any code snippets that support your topic, if applicable):