title: Power BI Paginated reports
body: <p>The following expression return correctly a list of values to the textbox:</p>
  <p>=Join(LookupSet(Fields!Division.Value, Fields!Division.Value, Fields!DischaegrCount.Value, &quot;Metrics&quot;),&quot;,&quot;)</p>
  <p>However, when attempting to export to any office product or pdf, the PaginatedReport program retuns &quot;object reference not set to an instance of the object&quot;</p>