PSA: Cross Platform Save players, log out before attempting to resume on a different platform

Greetings Tenno!

Due to the influx of players enjoying Cross Platform Save features, we've discovered a problem that you should be aware of if you are playing Warframe on multiple platforms:

In rare cases, if you are attempting to login but you were previously logged in at a different platform, this may temporarily prevent you from being able to login anywhere at all. We will be fixing this problem in our next update, but in the meantime, please be sure to fully log out of the game (including dismissing any dialog boxes) before attempting to sign it at a different platform to avoid issues.

Thank you for your patience and understanding.