I can't sign into my account through the app. I have reinstalled it twice, but continue to get an immediate error message. The only way I can access it is through the actual website which makes the convenience of the app kind of irrelevant. I have never had an issue with it until recently.
Same for me, either get stuck in a login loop, get told that it can't connect, or that I have no characters linked to this account. Been happening for about a week now.
This was way before the maintenance started this morning. I haven't been able to access the app for a couple months now.