Error converting word to pdf

When I try to use the save the attached document for converting to PDF using the aspose.pdf component I get the following error

Attempted to copy a by reference attribute '16', but the attribute does not expose the complex attribute interface

I am using the latest versions of both the aspose.word (3.2.0.0) and aspose.pdf (2.6.1.0) components.

Hi,

Thank you for considering Aspose.

Sorry I can't see anything attached. Please reattach the document.