I changed my email address in Apple.SE's profile settings. But when I log in now, it still requires me to use my old email address.
I'm using SE's own login, no fancy social media connections. I also verified the new email in the link they sent me. When I view my email settings now, it shows the new email address, but logging from a new incognito browser (no stored cookies), my old email is still required.
How can I resolve this?