I was reading a post (Lego store detains …) when suddenly this appeared:
It did not lie. Upon clicking Refresh (like an idiot?) I was indeed logged-out.
I was able to login again without incident.
However, after login each tab that I had had open had the above message on it, required a click on Refresh and then went to the main BBS screen (although the back-button got me to where I wanted to be). I remained logged-in in all other tabs upon going to the main screen.
Curiously, my browser just crashed, and after restart I was logged-out again.
Weird. That’s the message you get when you log out via the hamburger menu at upper right. It also logs you out on all devices, all sessions by default.