"The room is full"

When a second user tries to join the hello room, this user gets an 400 error : "The room is full".

The problem could come from the creation of the room :
https://github.com/collective/collective.hello/blob/master/src/collective/hello/browser/views.py
but we can see that the maximum number of participants is set at 5... :/

Otherwise it is possible that there is a trouble with the shared link (returned by Loop API)

Start in src/collective/hello/browser/views.py and reproduce a second user joining the hello room. Inspect room creation and the shared link returned by the Loop API, then verify the participant limit behavior: the second user should not receive "The room is full" when the room is configured for five participants.

Written by the indexing model from the issue text.