Hi,
This issue has been identified and fixed few months ago.
Relevant Knowledge Base Article is 1940001, and it's been delivered in 4.0 SP10 and 4.1 SP03
You may need to revalidate query objects and filters and save your Web Intelligence for this fix to be leveraged. to make sure it works you can begin with a new document, and then update existing ones.
Regards,
Loic
