When you run Session Integrator applications, the Session Integrator Service intermittently terminates unexpectedly and returns an exception in combase!CStdMarshal::DisconnectSrvIPIDs.
This error occurs because a Session Integrator object was released in error by the Session Integrator. When the calling Session Integrator tries to release the object, the object no longer exists. This causes the exception.
The fix that resolves this problem is included in the following cumulative updates for Host Integration Server:
Cumulative Update 2 for Host Integration Server 2016
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.
Learn about the terminology Microsoft uses to describe software updates.