Camera doesn't work when I open Zoom with app

When I open the Zoom app and join a meeting my camera doesn't work on my MacBook.  If I log in to my account on zoom.com and open or start another meeting via the website, the camera works.

Opening the app actually shuts down my MacBook camera.  It won't even function if I open another app such as FaceTime.  If I close the Zoom app and enter a room via zoom.com the camera magically works.