Ghost Line in the Chart after Saving the PowerPoint Presentation in C#

I have a chart with 4 lines

Presentation presentation = new Presentation(inputPath, loadOptions);
presentation.Save(outputPath, SaveFormat.Pptx);

As Input File I took this example File additional_line_template.pptx
and as output comes additional_line_generated.pptx
ghost_line.zip (73.8 KB)

You can see that the are nw 5 lines.
If you try edit data, so the ghost line disapears.

@Tivian_XI,
Thank you for contacting support. I am working on the issue and will get back to you soon.

@Tivian_XI,
I’ve reproduced the problem you described.

We have opened the following new ticket(s) in our internal issue tracking system and will deliver their fixes according to the terms mentioned in Free Support Policies.

Issue ID(s): SLIDESNET-44454

You can obtain Paid Support Services if you need support on a priority basis, along with the direct access to our Paid Support management team.

The issues you found earlier (filed as SLIDESNET-44454) have been fixed in Aspose.Slides for .NET 24.8 (ZIP, MSI, NuGet, Cross-platform).
You can check all fixes on the Release Notes page.
You can also find the latest version of our library on the Product Download page.