Captivate Issue: PowerPoint Import to Captivate

I think may have found an issue with the option to create a Captivate project from PowerPoint.... I am performing the steps on page 468 of Pooja's new book on Captivate 2017. When I try to import a PPTX file into Captivate, I always get the popup message ("Unable to import Microsoft PowerPoint presentation. The file may be damaged."). I know the file not damaged, since I can open it without a problem. And, this seems to happen on every PPTx file that I try these steps on. Is there a solution or fix for this. I have an upcoming project that I need to use this feature. Any help here is appreciated.

Regards,

Dave