what version of OBM are you running?

you can try to add an custom event processing rule that uses the same filter, that just prints the events into a plain logfile. so you can compare if something gone missing.

Hello,

The intention is that it work :-) 

If something isn't working, please check /opt/HP/BSM/log/webapps/notification-service.log on the DPSs.  

If there isn't an error, please enable DEBUG tracing in /opt/HP/BSM/conf/core/Tools/log4j/webapps/notification-service.properties like this:

##############################################################################
# High Availability Controller Manager Log file #
##############################################################################

monitorInterval = 30
property.notification-service_filepath = log/${sys:log.folder.path.output}
property.notification-service_Loglevel = DEBUG
property.notification-service_fileMaxSize = 20000KB
property.notification-service_backupCount = 10

Then you should get a better idea about the issue.

Thanks.

Setting to suggeted answer...