SYMPTOM:
A user receives the error "SQL Generation CompleteError in Process method of Component: QueryEngineServer, Project ' ', Job 478, Error Code =-2147467259" when running a report in Strategy Web and Desktop v9.3.0 with a clustered Intelligence Server configuration.

SQL Generation CompleteError in Process method of Component: QueryEngineServer, Project ' ', Job 478, Error Code =-2147467259
In DSSErrors.log, this is the only message seen. The user is also able to update Schema as well as view SQL in results.
CAUSE:
One possible cause is that an attribute definition stored in the Intelligence Server memory contains inconsistency.
ACTION:
This issue can be resolved by unload and re-load affected projects.