Sound and Video Options when Sharing Result in Not Able to see Speaker

I have "Zoom Workplace".  When I share my screen and select the options "Share Sound" and "Optimize for Video Sharing" for video showings in PPT slide mode, I cannot see myself or who is speaking.  When I do not select those options, I can see myself and other speakers/attendees just fine when in PPT slide mode.  I am thinking those options optimize the quality of videos so would like to use them.  I have tried changing the views available on the "share" menu but have had no success.