That’s the process currently required since Amazon changed the login screen sequencing from two to three!
The problem is the new three page login sequence with email, then password, then 2SV
AMP was programmed to do the callback after two pages (the way the Amazon login used to be) but gets an “unsuccessful” response after only two pages since the login sequence did not finish all three pages and AMP returns you to the previous (first) page to try again. So…
At this screen, select the first option
Enter “x x” for First and last name and click CREATE YOUR AMAZON ACCOUNT
Now you can select SIGN IN which then proceeds to the 2nd page which is Two-Step Verification
and the callback to HA will then occur where it will test if your email, password & OTP login was successful or not. If not, it sends you back to the first page in Amazon’s new 3 page sequence.