Problem saving PPT document as PDF

Hi, opening the attched PPT document (sample.zip) with Aspose.Slides 4.1.1 or 4.3.0 results in a high memory usage and hundrets of exception like:

Eine Ausnahme (erste Chance) des Typs “Aspose.Slides.PptException” ist in Aspose.Slides.dll aufgetreten.
Zusätzliche Informationen: Frame is not an OleObjectFrame.
[…]
Zusätzliche Informationen: Can’t be a table.
[…]
Zusätzliche Informationen: Frame is not a VideoFrame.
[…]
Zusätzliche Informationen: Frame is not an AudioFrame.
[…]
Zusätzliche Informationen: Wrong shape inside a table.
[…]
Zusätzliche Informationen: Inside GroupShape
[…]

Saving the document anyway as PDF not always succeeds.
Do have any suggestions what we could change within the document to avoid such problems?

Thanks and regards.

Dear Sacha,

I have worked with the presentation file shared by you and have been able to generate the PDF file using Apose.Slides for .NET 4.3.0. I have tried number of times and have succeed on every event. The maximum memory requirement while converting to PDF was 400 MB and it depends on the slide contents. The memory is automatically released upon completion of process. For your ind reference, I have attached the generated PDF as well.

Thanks and Regards,