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MAUI - Powerpoint charts produces the wrong results

Hi,

We are trying to have a MAUI app produce a PowerPoint presentation and it works great except for the Graph/Chart.  We need the chart to show 5 categories with 2 bars in each category which seems simple enough given the docs but we have been struggling and believe it's possibly an issue with the library.

Our code is:


//Grab the Slide for the Graph

        ISlide slide = pptxDoc.Slides[6];

        //Add a chart to the slide giving the Position and Size

        IPresentationChart chart = slide.Charts.AddChart(75, 175, 800, 300);


        //Set the chart to be transparent so the slide details show through.

        chart.PlotArea.Fill.BackColor = Syncfusion.Drawing.Color.Transparent;

        chart.PlotArea.Fill.ForeColor = Syncfusion.Drawing.Color.Transparent;


        chart.PrimaryValueAxis.MaximumValue = 140;

        chart.PrimaryValueAxis.NumberFormat = "0";

        chart.HasLegend = false;


        chart.ChartData.SetValue(1, 1, "DATE");


        // Row 1

        chart.ChartData.SetValue(1, 2, "Date 1");

        chart.ChartData.SetValue(1, 3, "Date 2");


        // Row 2

        chart.ChartData.SetValue(2, 1, "CF");

        chart.ChartData.SetValue(2, 2, 10);

        chart.ChartData.SetValue(2, 3, 20);


        // ROW 3

        chart.ChartData.SetValue(3, 1, "OO");

        chart.ChartData.SetValue(3, 2, 30);

        chart.ChartData.SetValue(3, 3, 40);


        // Row 3

        chart.ChartData.SetValue(4, 1, "IM");

        chart.ChartData.SetValue(4, 2, 50);

        chart.ChartData.SetValue(4, 3, 60);


        // ROW 4

        chart.ChartData.SetValue(5, 1, "E3");

        chart.ChartData.SetValue(5, 2, 70);

        chart.ChartData.SetValue(5, 3, 80);


        IOfficeChartSerie seriesCF = chart.Series.Add("CF");

        seriesCF.Values = chart.ChartData[2, 2, 2, 3];

        seriesCF.DataPoints.DefaultDataPoint.DataLabels.IsValue = true;

        seriesCF.DataPoints.DefaultDataPoint.DataLabels.Position = OfficeDataLabelPosition.Inside;

        seriesCF.DataPoints.DefaultDataPoint.DataLabels.Color = OfficeKnownColors.White;

        seriesCF.SerieFormat.Fill.ForeColor = Syncfusion.Drawing.Color.Green;


        IOfficeChartSerie seriesOO = chart.Series.Add("OO");

        seriesOO.Values = chart.ChartData[3, 2, 3, 3];

        seriesOO.DataPoints.DefaultDataPoint.DataLabels.IsValue = true;

        seriesOO.DataPoints.DefaultDataPoint.DataLabels.Position = OfficeDataLabelPosition.Inside;

        seriesOO.DataPoints.DefaultDataPoint.DataLabels.Color = OfficeKnownColors.White;

        seriesOO.SerieFormat.Fill.ForeColor = Syncfusion.Drawing.Color.Pink;


        IOfficeChartSerie seriesIM = chart.Series.Add("IM");

        seriesIM.Values = chart.ChartData[4, 2, 4, 3];

        seriesIM.DataPoints.DefaultDataPoint.DataLabels.IsValue = true;

        seriesIM.DataPoints.DefaultDataPoint.DataLabels.Position = OfficeDataLabelPosition.Inside;

        seriesIM.DataPoints.DefaultDataPoint.DataLabels.Color = OfficeKnownColors.White;

        seriesIM.SerieFormat.Fill.ForeColor = Syncfusion.Drawing.Color.Purple;


        IOfficeChartSerie seriesE3 = chart.Series.Add("E3");

        seriesE3.Values = chart.ChartData[5, 2, 5, 3];

        seriesE3.DataPoints.DefaultDataPoint.DataLabels.IsValue = true;

        seriesE3.DataPoints.DefaultDataPoint.DataLabels.Position = OfficeDataLabelPosition.Inside;

        seriesE3.DataPoints.DefaultDataPoint.DataLabels.Color = OfficeKnownColors.White;

        seriesE3.SerieFormat.Fill.ForeColor = Syncfusion.Drawing.Color.Orange;


        chart.PrimaryCategoryAxis.CategoryLabels = chart.ChartData[2, 1, 5, 1];


The result this produces is:


Empty


It should have the bars of the same color next to each other with the 5 category labels under the graph.  We have tried many combinations but can never get the chart to display correctly.

Also we have been trying to make the chart transparent so that the PowerPoint slide background shows through which we are setting at the top of this code sample and it has no effect.  We tried the PlotArea as well but this is the same.

Thanks

Cliff.