Solved
Unable to Log In through the launcher?
I logged in just fine yesterday, and when I'm in the game, my profile shows up. I'm trying to upload some screenshots and it just keeps kicking me back to the login screen. Similar was happening ...
KCNDreams Try clearing Edge's Internet Explorer-mode data, which is where launcher-related browsing data is stored even if you never use Edge.
Additionally, open Documents > Electronic Arts > The Sims 3 > Downloads and delete the file labeled [your email].bin. And of course restart your computer.
