This is EXACTLY what happened on my end. I continue to get the same error (418) when I try to reconnect via the API code.
I’m sorry it’s happening to you as well, but I’m honestly relieved that it’s a system thing and not a me thing? I couldn’t figure out what I had done to change the functionality! It sounds like the issue has been passed along to the devs so hopefully we both hear back with a resolution soon!