WCF ExceptionShielding Error ID does not match up with handlingInstanceId passed to Handler

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.NET

WCF

exceptions

I have the following decorated on my service

<ExceptionShielding("MyExceptionPolicyName")>

when a fault exception is thrown, my policy picks up the error and logs in just fine. It takes the handlingInstance Id and logs it along with the error for reference. What I'm noticing, is the Guid returned in the Fault "Error ID:" is different than that one passed into the handling instanceId.

I've also tried to decorate the operation like so

<FaultContract(GetType(ValidationFault))>

but this produces the same results.

What I would like to do is some how capture that "Error ID:" passed back to the consumer so I can log it along with the exception. *addition info: the exception policy handler is a custom one that takes an exception, and logs it's various properties and data into a specific exception log db schema.

Anyone know how to accomplish this?