and to access the chatrooms I have to click on my user name at the top horizontal menu bar to see invite to entrances to the chatrooms. Moreover I am invited only to access the chatrooms I have only recently visited and can't any longer access chatrooms I could previously access.
When I leave the chatroom I'm taken back to the StackExchange chat general portal instead of the portal of the parent user as it used to be the case before the problem appeared.
I asked the question on FL - my main community - but so far only one other user said they'd encountered the same problem.
Bug or new feature?