SYMPTOM:
When users attempt to add an attribute element list condition in the view filter of a Freeform SQL report, the following error appears in Strategy Web 9.x when applying the change:


Your request could not be processed. Please try again. If the problem persists, contact the Administrator. Error when answering the prompt. Please review your answer(s).


An unexpected error has occurred. Task #0 failed: (Invalid element value 'Art & Architecture' for attribute 'Sub category' (form 'ID'). Expected value type is numeric.Failed to load object from XML.)

ACTION:
Change the mapped attribute form to the correct data type that is consistent with the underlying data. Refer to KB37494 for details on changing the data type.