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Unable to Change the Font of a Treemap Chart in a PowerPoint Slide

Hi, I can use the following code to change the font of any chart other than a Treemap chart in a powerpoint slide.

chart.TextFormat.PortionFormat.LatinFont = new FontData("Arial");
chart.TextFormat.PortionFormat.FontHeight = 11;

The version of the Aspose.Slides.NET I used is 21.9.0. How can I change the font of a Treemap chart?

Thank you for the issue description. I reproduced the problem with changing the chart font and logged the issue with ID SLIDESNET-42832 in our tracking system. Our development team will investigate this case. You will be notified when the problem is resolved.