actually I have the problem, that in some networks it isn’t possible to use screen sharing.
When I activate screen sharing and also my recipient, chrome asks us for permissions. After that both can see a preview of the shared screen, but only the own one. So I think it’s a streaming problem.
The weird thing is, that not every network has this problem.
When I try meet.jit.si it’s working fine, also from networks having problem with my self hosted Jitsi.
Thanks for your answer. I tested it on my own:
In general 3 tabs on same device with camera active is possible.
I can’t check from remote if it’s possible to use 3 camera in a network with problems, cause this pc doesn’t have a camera plugged in. So I have to check this tomorrow.
But it also tested if it’s possible to send my camera through a “problem” network. -> This doesn’t work, too. So I checked the console of the client in the problem network and find many errors like these: