Assert refs to Request message - works sometimes

Using Assertions, I want to compare some response fields to fields in the request (same Test Step)
I am finding that some times my references to request fields work, sometimes they do not.

For now, in my assertion, I am just trying to get the value of a request field to see if it is able to pick it out of the request - not comparing to the response.

WORKS:    "Select From Current" correctly returns "1234"

      ${RequestMsg#Request#//con:Requester/con:RequesterID}

FAILS    - this time, try to get RequesterName.
                Simply change the ending ID} above to Name}
                (both are xsd:string)

      ${RequestMsg#Request#//con:Requester/con:RequesterName}

    ERROR BOX: No match in current response

I can get to
  con:ID
  con:RequestDateTime -- Well I get an error - doesn't like T09:30:47Z
  con:RequesterID
But not
    con:RequesterName        ERROR BOX: No match in current response
    con:MessageTrackingID  ERROR BOX: No match in current response

Has anyone else had this problem? Result is I can't do comparisons to some request fields.


<....>

xmlns="http://xyz.com/myservice/message"
...
xmlns:con="http://xyz.com/myservice/data/context">

 

      123
     
        2009-10-11T09:30:47Z
       
            1234
            REBO
       
       
            vcpid_123450001
       
     
 

  ...

Thanks