SYMPTOM:
When running a heterogenous data access report with filter value like "Location is exactly North America", it fails with the following error:

Sample Code/Error
Error: SQL Generation CompleteQueryEngine encountered error: XMLA Discover failed. SOAP Server Error.
Error type: XMLA error...
However when running the report with filter a value like "Location is exactly APAC", it finishes successfully.
Moreover, the MDX attribute "Location" used in the report filter is not in the report template and the MDX attributes in the report are mapped to project attributes.
CAUSE:
This is a known issue in Strategy Developer 9.4.x-10.x.
ACTION:
Strategy will continue to investigate and post updates as soon as they are available.
WORKAROUND: