Query changes not visible in Crystal Reports

Hello

I'm building a report on top a BI query. To solve some design problems I had to change my query in Query Designer. But I can't see those changes in Crystal Reports. The fields are the same as before, even when I click on 'Regenerate' in the context menue in Field Explorer.

Do I really have to build a complete new report to see these changes in Crystal Reports?

- Crystal Reports 2008, V1

- SAP Integration Kit 3.1

- Query designed Business Explorer 3.5 and 7.0 (effect appears with both versions)

- SAP GUI 710, Patch 11

Thank you for you help!

phil