It happened right after the game forced a tiny update. One of those that takes no time to install and a few seconds of “Recovering Space”. I’ve had 3-4 of them in a day before this is the first time it borked the game for me though.
Edit: Started a scan and repair while I’m eating dinner. Hopefully that fixes the problem. And… nope, still broken. Someone’s going to have get on Xitter and yell at them to wake up the devs. They probably have no idea it’s borked. “Wow, the servers are running really smooth after that patch!”