I reproduced the problems with shapes and logged the issue with ID SLIDESNET-42922 in our tracking system. Our development team will investigate these cases. You will be notified when the issue is resolved.
@ISIWARE,
We inform you that the fix for the issue will be added in Aspose.Slides 23.1. This release will be published in the second half of January. We apologize for any inconvenience.
The issues you found earlier (filed as SLIDESNET-42922) have been fixed in Aspose.Slides for .NET 23.1 (ZIP, MSI).
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.