Ever since Wortox was release I cannot login at the main menu which forces me to offline mode and the only current fix to bypass it which only works sometimes is to turn off the internet in network settings then launch the game and login for offline mode then log out and turn the internet back on and login. But it's 50/50 so keep repeating till it lets you login. Hopefully this is fixed soon.
Klei ID: KU_uu8EtmQ0
Login at main menu.