Xbox One - Click "Launch" On Multiplayer, freezes on "Searching for EA Account"

I've played through the campaign of Titanfall 2 but as soon as I click "Launch" on multiplayer, a screen pops up with a loading wheel that says "EA Account - Searching for EA Account..." and promptly freezes the entire game after a second or two. There is no way to get out of the menu but to go back to the Xbox One dashboard and quit the game. I've tried restarting both the game and console multiple times, and changing the data centre to multiple different locations.