It has been a month since you first posted your issue so I don't know if you are still having the issue, but after dealing with the same problem for over an hour (saying password was wrong on app and website, even tho I know it was correct), I finally figured it out! You cannot use the autofill when you enter your email address. You have to type in the whole email address every time. I'm not sure why it doesn't like the autofill, I just know that typing it out has worked every time on multiple devices!
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