c# - SetSourceData for Chart returns HRESULT E_FAIL for PivotTable (Excel C#)

Question

I want to create several PivotTables in a Sheet and from each PivotTable a Chart. The First PivotTable and the first Charts are created normaly. After I create the second PivotTable, I want to add a second Chart with the Source from the secound PivotTable, but this retuns than HRESULT E_FAIL and the second Chart has the source of the first PivotTable, which I am not able to change.

        string pitpivotNam1 = "table1";
        Dictionary<String, Excel.PivotField> pFields = new Dictionary<String, Excel.PivotField>();
        Excel.PivotTable pivotTable1 = null;
        Excel.Range pivotDest = excelApp.Worksheets["PivotTable"].Cells[1, 1];

        excelApp.Worksheets[sheetData].Activate();
        int countColmn = excelApp.Cells[1, 1].End(Excel.XlDirection.xlToRight).Column;
        var headerNam = excelApp.Range[excelApp.Cells[1, 1], excelApp.Cells[1, countColmn]].Value;

        // Data Source for PivotTable
        Excel.Range pivotData = excelApp.Worksheets[sheetData].usedRange;
        Excel.PivotCache pivotcache = excelApp.ActiveWorkbook.PivotCaches().Create(Excel.XlPivotTableSourceType.xlDatabase, pivotData.Address/*, Excel.XlPivotTableVersionList.xlPivotTableVersion15*/);
        excelApp.Worksheets[sheetDest].Activate();
        pivotTable1 = excelApp.Worksheets[sheetDest].PivotTables.Add(pivotcache, pivotDest, pitpivotNam1, useDefault/*, Excel.XlPivotTableVersionList.xlPivotTableVersion15*/);

        // Create Dynamically PivotFields
        for (int i = 1; i <= headerNam.Length - 1; i++)
        {

            pFields.Add("test" + i.ToString(), (Excel.PivotField)pivotTable1.PivotFields(i));

        }

        pFields["test20"].Orientation = Excel.XlPivotFieldOrientation.xlDataField;
        pFields["test20"].Function = Excel.XlConsolidationFunction.xlAverage;
        pFields["test43"].Orientation = Excel.XlPivotFieldOrientation.xlDataField;
        pFields["test43"].Function = Excel.XlConsolidationFunction.xlAverage;
        pFields["test66"].Orientation = Excel.XlPivotFieldOrientation.xlDataField;
        pFields["test66"].Function = Excel.XlConsolidationFunction.xlAverage;
        pFields["test20"].Name = "DVP & R Progress";

        // First Chart
        excelApp.ActiveSheet.Shapes.AddChart.Select();
        excelApp.ActiveChart.SetSourceData(pivotTable1.TableRange1);

        // Second PivotTable
        string pitpivotNam2 = "table2";
        Excel.PivotTable pivotTable2 = null;
        Dictionary<String, Excel.PivotField> pFields2 = new Dictionary<String, Excel.PivotField>();
        Excel.Range pivotDest2 = excelApp.Worksheets["PivotTable"].Cells[20, 1];

        excelApp.Worksheets[sheetData].Activate();
        int countColmn2 = excelApp.Cells[1, 1].End(Excel.XlDirection.xlToRight).Column;
        var headerNam2 = excelApp.Range[excelApp.Cells[1, 1], excelApp.Cells[1, countColmn2]].Value;

        // Data Source for PivotTable
        Excel.Range pivotData2 = excelApp.Worksheets[sheetData].usedRange;
        Excel.PivotCache pivotcache2 = excelApp.ActiveWorkbook.PivotCaches().Create(Excel.XlPivotTableSourceType.xlDatabase, pivotData2.Address/*, Excel.XlPivotTableVersionList.xlPivotTableVersion15*/);
        excelApp.Worksheets[sheetDest].Activate();
        pivotTable2 = excelApp.Worksheets[sheetDest].PivotTables.Add(pivotcache2, pivotDest2, pitpivotNam2, useDefault/*, Excel.XlPivotTableVersionList.xlPivotTableVersion15*/);

        // Create Dynamically PivotFields
        for (int i = 1; i <= headerNam2.Length - 1; i++)
        {

            pFields2.Add("test" + i.ToString(), (Excel.PivotField)pivotTable2.PivotFields(i));

        }

        pFields2["test17"].Orientation = Excel.XlPivotFieldOrientation.xlColumnField;
        Excel.PivotField dataField = pivotTable2.DataPivotField;
        pFields2["test17"].Orientation = Excel.XlPivotFieldOrientation.xlDataField;
        pFields2["test17"].Function = Excel.XlConsolidationFunction.xlCount;
        pFields2["test40"].Orientation = Excel.XlPivotFieldOrientation.xlDataField;
        pFields2["test40"].Function = Excel.XlConsolidationFunction.xlCount;
        pFields2["test63"].Orientation = Excel.XlPivotFieldOrientation.xlDataField;
        pFields2["test63"].Function = Excel.XlConsolidationFunction.xlCount;
        dataField.Orientation = Excel.XlPivotFieldOrientation.xlRowField;

        // Secound Chart
        excelApp.ActiveSheet.Shapes.AddChart.Select();
        excelApp.ActiveChart.SetSourceData(pivotTable2.TableRange1);

Thanks for your help in advance.

Regards,

Daniel