Camera won't display in Chrome, OK in Firefox - Win10

Using the free meeting from meet.jit.si.
With portable Chrome (from portableapps.com), I cannot get my webcam to display on the screen or to others. I can see it when I go to select between webcam and screencam, but clicking on it returns the screen cam. Other participants see a brief flash of my webcam display and then my screen cam again.
I tried it with portable Firefox and it worked as I expected it to - I was able to select either the webcam or screencam and get what I requested. I tested it with my desktop PC and an Android phone both connected to the same room. The phone worked.