title: MDX: Problem filtering results in MDX query used in Reporting Services query
body: <p>Why aren't my results being filtered by the members from my [Group Hierarchy] returned via the filter() statment below?</p>
  
  <pre><code>    SELECT 
      NON EMPTY {[Measures].[Group Count], [Measures].[Overall Group Count]   } ON COLUMNS,
      NON EMPTY {
          [Survey].[Surveys By Year].[Survey Year].ALLMEMBERS * 
          [Response Status].[Response Status].[Response Status].ALLMEMBERS} 
      DIMENSION PROPERTIES MEMBER_CAPTION, MEMBER_UNIQUE_NAME ON ROWS
  FROM (
      SELECT ( { [Survey Type].[Survey Type Hierarchy].&amp;[9] } ) ON COLUMNS
      FROM (
          SELECT ( { [Response Status].[Response Status].[All] } ) ON COLUMNS
          FROM (
              SELECT ( STRTOSET(@SurveySurveysByYear, CONSTRAINED) ) ON COLUMNS
              FROM (
              SELECT(filter([Group].[Group Hierarchy].members, instr(@GroupGroupFullName,[Group].[Group Hierarchy].Properties( "Group Full Name" )))) on columns 
              FROM [SysSurveyDW]))))
  
  CELL PROPERTIES VALUE, BACK_COLOR, FORE_COLOR, FORMATTED_VALUE, FORMAT_STRING, FONT_NAME, FONT_SIZE, FONT_FLAGS
  </code></pre>