I continue to have this issue. There is a 2 device limit now with the browser also being treated as a separate device. I have my 2 devices set to my iPad and Mac, first I got a notification that I need to unsync and then I was able to use the iPad, when I went to my mac I was asked to sign in and then get a pop up asking me to change it once more. I wish there was a way to view my current active device list without a forced change to the same list of devices before the tries are exhausted and evernote is unusable on any device.