Low quality of a gradient shape thumbnail

Hi Aspose. I have a gradient filled shape and when i’m trying to get it’s thumbnail the resulted image has really poor quality. I’m using Aspose.slides 20.9 and GetThumbnail(4, 4) Here is a source deck:
https://drive.google.com/file/d/1RKSV6q3NHK94AI-S-Q3iRhfNefpHfZpE/view?usp=sharing
And here you can see the result gradient.jpg (682.4 KB)
I mean that i can see the horizontal lines of gradient in the saved shape

@obrusentsov

I have created an issue with ID SLIDESNET-42203 in our issue tracking system to further investigate and resolve the issue. This thread has been linked with the issue so that you may be notified once the issue will be fixed.

The issues you have found earlier (filed as SLIDESNET-42203) have been fixed in this update.