Hello,
We are currently using Aspose Slides 17.6 and we have a presentation template that throws an exception when we try to save it as PPTX. The exception message is “An entry with the same key already exists.”
I tried updated to the latest version (18.11) but in my case it doesn’t fix the issue. I’ve attached a stripped version of the template that still throws the exception
Presentation_2.zip (66.3 KB)
I have worked with the presentation shared by you using Aspose.Slides for .NET 18.11.0 and have been able to observe the issue. A ticket with ID SLIDESNET-40714 has been added in our issue tracking system to resolve the issue. This thread has been associated with the ticket so that we share notification with you once issue will be fixed.
The issues you have found earlier (filed as SLIDESNET-40714) have been fixed in this update.