Content Is Missing after Using RemoveEncryption Method on PPT File in C#

Hi,

Something missing when ulocking a slide.

Using SDK: Aspose.Slides for .Net 24.5.
Tested OSs were Win7 and Win10
.NET target platform is .net 6.0

Using code

void testUnlockppt(string filename)
{
    Presentation document = new Aspose.Slides.Presentation(filename);
    document.ProtectionManager.RemoveWriteProtection();
    document.ProtectionManager.RemoveEncryption();
    document.Save(filename + ".out.ppt", Aspose.Slides.Export.SaveFormat.Ppt);
}

Different is in page 5.
图片.png (97.6 KB)

Using file:
滑轮问题的深入分析(第三课时)(2016).7z (290.1 KB)

@kngstr,
Thank you for contacting support. I’ve reproduced problems similar to the one 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-44597

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-44597) have been fixed in Aspose.Slides for .NET 24.7 (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.