Livestreaming to youtube - what is streamed?

I’ve setup a system to stream jitsi to youtube. I was expecting the stream to mirror what is shown on the main jitsi screen. When I select another participant to be on the main display, the stream does not change. Nor does it show the tiled output.
Am I doing something wrong?

I am using the public jitsi server at


In settings, under the “Moderator” tab, select “Everyone follows me”.

That seems to work fine. Thanks!