I am very sorry for the late response. It seems that the issue can be related to the name of original PDF that you’ve attached to the presentation. Is it possible to share it with us for analysis? I am talking about the PDF from this screenshot:
At this moment, opening initially provided presentation (Presentation1.pptx) in various editors results in practically the same behavior but not the one as shown here:
In other words, we didn’t manage to achieve the result as above. It is possible that the attached presentation was corrupted before uploading to Document Server. Can you download it from your post and check in your MS PowerPoint again? If it opens normally as on screenshot, please let me know the version of used MS Office suite. Also, can you run a test and re-create the presentation once again?
Additionally, please specify how attached presentation was created. Do I understand that it was initially created as PPT (not PPTX) and then converted to PPTX?