I recently updated OpManager to 12.3.219.

Since the update, my real-time configuration change email notifications and alerts have stopped. I checked my device configurations and even re-enabled change detection under the NCM module for all devices managed under NCM. The only time I seem to get the alerts is after going into NCM and re-enabling change detection. Otherwise, no emails or alerts come in. 

Any help is appreciated!

Cisco devices are configured with to following:

!

This configuration worked with the previous build.