Please have a look at the attached source code (you have to put 20.4 Aspose.Slides.NET.dll yourself because it was too big to upload). The console application reads an “input.pptx” and outputs an “output.pdf” file. If you look at the output PDF file you can see that the third line looks really strange.
AsposeSlidesBug.zip (591.7 KB)
Unfortunately this is not the first problem with charts and Aspose.Slides that we (and our customer) have come across and our customer is a bit worried about the reliability and quality of the product - I hope this issue (as well as the one with waterfall charts we experienced as mentioned in another thread) can be fixed quickly.