Blank slide thumbnail and SVG is generated (C# .NET)

Hey team. I have an issue with getting slide thumbnail. When i’m trying to slide.GetThumbnail(1,1) the resulted image is blank. But the situation changes when i’m trying to write this thumbnail as svg. Could you please advise? Here is a link to a sample project with a sample pptx file inside:
https://drive.google.com/file/d/107KSMrhfRnrpxH4JT5aWprD6yyrT5czZ/view?usp=sharing

@obrusentsov,

I have worked with source file and have been able to observe issue. A ticket with ID SLIDESNET-41586 has been created in our issue tracking system to further investigate to resolve the issue. We will share good news with you soon.

The issues you have found earlier (filed as SLIDESNET-41586) have been fixed in this update.