Slide thumbnail: The shapes are missing (C# .NET)

Hi I was trying to get thumbnail of a slide using Aspose.Slides for .NET. But all shape are not shown on the thumbnail.demo.zip (35.1 KB)

I have attached the file. Please help!

@kamaldeepsingh,

I have observed the presentation file shared by you. Can you please share the generated output with missing shapes with us along with used sample code. Please also try using latest Aspose.Slides for .NET 19.12 on your end as well before sharing the information.