I tried to set up conference with some people in the states and also with a few folks in the UK.
The stateside participants can all see one another and chat back and forth but to them the UK members are just meeple avatars with no video or sound available. The connection status on each of them shows a grey icon and says something like unavailable or something like that.
On the UK side the participants see each other and have the same result with the US participants being defunct.
I tried that on my local install and all participants were able to interact as designed.
Any idea on how to get that figured out with the online jitsi offering?