This session has timed out for your security

I'm trying to log in appleid.apple.com. It accepts my username and password and brings up the site, but a second later it says 'This session has timed out for your security' and kicks me out.

I've tried on Safari, Chrome, and Edge (on a PC). Same result everywhere.

I searched for the string above, and one article mentioned that it might be a browser plug-in. I've disabled all of them, but I still get the same result.