Just a couple of weeks ago, I tried to invite a player to one of my campaigns. I tried both a "handle" and a google email address, and neither worked.
Then I noticed that there were suddenly two copies of the campaign (only one was visible before trying to invite the new player).
Today, I noticed that two of my other campaigns have also been duplicated.
Each has a distinct URL.
Any clues? I'm wary of deleting one of the pairs in case it deletes both.