title: Enterprise service object from WSDL returns null
body: <p>I created a service consumer through the wizard, based on a WSDL. Proxy object is generated, all structures and methods are found. Then, I add a logical port through SOAMANAGER - all fine, it pings and the connection works.</p>
  
  <p>I populate the input structure, call my method and get an error: <strong>Error during proxy processing (PART UNKNOWN (NULL))</strong>. This is a very useless error message to me.</p>
  
  <p>So, I activate all manners of tracing, so I can see what's going on calling and retrieving data. I can see that</p>
  
  <ol>
  <li>My proxy is called correctly</li>
  <li>The payload sent TO the service looks correct</li>
  <li>The payload received FROM the service is correct. I know this because it's identical to the XML I get back calling the service through other means.</li>
  <li>The transformation is empty</li>
  </ol>
  
  <p>Here a screen of (the start of) the returned XML. <code>getRecordsResult</code> set is what I need:</p>
  
  <p><img src="https://i.stack.imgur.com/2AnqZ.png" alt="enter image description here"></p>
  
  <p>This is the second response, after "conversion":</p>
  
  <p><img src="https://i.stack.imgur.com/eMW3f.png" alt="enter image description here"></p>
  
  <p>Nothing about this service has been customized: it's generated straight up through the wizard. I have already deleted and recreated it but no results.</p>
  
  <p>Anyone got any advice on what to do next?</p>