Chart Is Missing in PDF Generated from PowerPoint Presentation File in C#

Hello,
when saving a PPTX as PDF, a chart is not included.
We have observed this in Aspose.Slides version 17.7, but even with Aspose.Slides 20.9 this still occurs.

It is easy to reproduce.
Just use the attached example pptx (Example.zip (43.2 KB)) and the following code:

     Aspose.Slides.Presentation pres = new Presentation(@"C:\temp\Example.pptx");

    //Saving the presentation to PDF document
    pres.Save(@"C:\temp\AsposeConvert.pdf", SaveFormat.Pdf);

Could you explain, what is the problem and how can we fix it?
We usually have no problems with charts. Is it because this is a more complex chart of the type “Custom Combination” (see attached screenshot of Excel Insert Chart - Menu InsertChart.png (13.8 KB)
)?

Thanks in advance!

@MSchreiner

Can you please provide the generated PDF that you are getting on your end that we may test and verify for comparison on our end.

Here it is: AsposeConvert.pdf (41.5 KB)

Thanks lor having a look at it.

@MSchreiner

I have created an issue with ID SLIDESNET-42211 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.