Screen Sharing Powerpoint as background

[iole]

For years I have been using Zoom to teach and share my slides, clicking on Share - Advanced - Powepoint as a backgroung. And since last week this option is not available on my PC, but it is available on my macbook. I have updated my zoom account and my Powerpoint and I am still unable to use this option that it was available before.
I like this option because then I have control of my position and size in front of the slide as I need to demonstrate different aspects. 
Please help!

[UriPilichowski]

I have the same problem! Help!