Hi Dave,
I can confirm the issue using QWP 5.6. I'm going to record it in our system and include the fix in a future release.
If you're interested to see in which release this issue is fixed please contact Quest support and they will be happy to help you.
Also I noticed that you are on an old QWP version, I'd suggest you to upgrade to a more recent release (5.7 will be out very soon).