After playing one round of one flag, just after the second round (defense) started I got booted to the scoreboard (“starting game”), and after a while of that I got stuck on the loading screen.
Throughout it all I could still use chat and people replied to tell me they were playing fine.
I closed the game and tried to reopen it, but it wouldn’t load because the game was still running in the background. I had to end the task using task manager.