1. I confirm the bug
2. The cause is a wrong initialisation of a string. EG in Download, edit RenderValuesToHtmlInsideDataSet
   You will need to change
   

    

   For Each row As DataRow In tableData.Rows
   Dim strFieldvalue As String = String.Empty
       For Each FieldName As String In colURL

            to:
             For Each row As DataRow In tableData.Rows
                   For Each FieldName As String In colURL
                   Dim strFieldvalue As String = String.Empty