We couldn't find a user's successful login using multi-factor authentication. Make sure you successfully log in at least once and that you are prompted for a second form of authentication
- Secure Your Users' Identity
- We couldn't find a user's successful login using multi-factor authentication. Make sure you successfully log in at least once and that you are prompted for a second form of authentication.
Reset your password once you have enabled your authentication for your user name and you will be prompted to authenticate your device once more.
https://trailhead.salesforce.com/ja/trailblazer-community/feed/0D54S00000HDKH3
Had same issue and did this badge just with another org, and it worked. I assume it's because i messed up my domain before, when I cchanged url for my org