Symptoms

the "Default client event" component can't send out email to approver.
 

Diagnoses

The K2 workflow can send out email to approver when approver have a new approve task. (before 9/1/2015)
But now the process can’t send out email.
Only the K2 “default client event” can’t send out email, the “email event” can send out email.

 

Resolution

As the customer is using private queue, the issue was resolved by making the following change to both SourceCode.Eventbus.ClientRecorder.dll.config and SourceCode.EventBus.Server.config files:

From:-
HKDC2K2P03EventBus
HKDC2K2P03EventBus Error
To:-
HKDC2K2P03Private$EventBus
HKDC2K2P03Private$EventBus Error