Debbie/Martin,
I have the .dmp file uploaded in this reply. Hope this helps some more. As mentioned in the email. This is a good example of a query that runs especially long and appears to simply lose connection on the TDP side at some point (again I the connection can no longer be found on the AS400 side), but not throw any error back leaving the task running indefinitely until I have to forceably end the task. Let me know if you need anything else from me.
Thanks
Chad