MDX Query designer working correctly?

I've been working with the MDX query designer in Reporting Services 2005 (RTM Developer Edition) and have come across a behavior that does not seem correct.
I can build a report using the wizzard, preview it, deploy it, and all is good with the world. But if I so much as click on the Data tab in the report designer, the report becomes invalid.
Is this by design, or is there some other way to edit a report created with the MDX query designer?
Regards,
Clayton

This is known issue in Report Designer.

Here is workaround:

1. After the report wizard completes, close the report.

2. Open the report in code view

3. Edit the report removing all carriage returns and all whitespace (blanks) between the two tags

<rd:MdxQuery> and <QueryDefinition>

4. Save the report and close the window

5. Open the report in Design Mode.