Just an FYI for others.
Tried logging in this morning to Coinbase. Got a screen saying they are forcing two-factor authentication, which I already had enabled on my account.
Entered the auth code 3x and locked me out.
Said sorry for error. Try again later.
Hit refresh on the browser and was logged in.
Then got booted automatically 5 minutes after log in.
Logged back in and now dashboard won't fully load.
Perhaps still recovering from yesterday's outage.