I'm also having the "
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error anytime I do the 2FA code for the past 2-3 days now on marriott.com, glad to know its not only me. App seems to be working fine but not the site. I have to pick my annual choice benefit and can't
UPDATE:
I just opened an incognito window and did the sign in process from the beginning (previously my member number was saved in the login bar) and when I logged in I was prompted to reset my password and now I can login again. Just thought i'd pass it along in case it helps anyone else! I think they have new password requirements now