Surface Chart is empty in generated slide thumbnail (C#)

[jiang-1]

hi,

we are using the following code to create thumbnails of surface charts. But the result is empty. Could you please fix this problem? Thank you!
using (IPresentation presentation = new Presentation(“surface chart.pptx”))
{
using (Bitmap thumbnail = presentation.Slides[0].Shapes[0].GetThumbnail())
{
thumbnail.Save(“surface chart.png”);
}
}

surface chart thumbnail.zip (55.0 KB)

[mudassir.fayyaz]

@jiang-1,

I have observed the image shared by you and have been able to observe the issue. An issue with ID SLIDESNET-41575 has been created in our issue tracking system to further investigate and resolve the issue. This thread has been linked with the issue so that you may be notified once the issue will be fixed.