Set up one permission set fro 2fa, assigned it to user.

Get 


Challenge Not yet complete... here's what's wrong: 
Could not find just one PermissionSet enabled for 2FA.

The only otehr permission sets were included in trailhead and i can;t delete them or see if they have 2fa set.

PLease help

Hi All,
 
I am getting an error as  "Could not find just one PermissionSet enabled for 2FA" for Step6 of Security Specialist Super Badge.
 
 

 
I had created a permission set which has “Two-Factor Authentication for API Logins” and “Two-Factor Authentication for User Interface Logins” checked , this permission set is assigned to Samantha Cordero. I tested the 2FA with Samantha’s login and it passed since it asked me to authenticate using sales force authenticator app along with username and password.
 
I also tried changing the API name but still facing the same issue, not  sure what is missing. Any help is really appreciated!!!
 
Thanks,
Rajesh