Announcing the public preview of Azure AD support for FIDO2-based passwordless sign-in

Hello,

Following the instructions at https://docs.microsoft.com/en-us/azure/active-directory/authentication/howto-authentication-passwordless-enable#user-registration-and-management-of-fido2-security-keys there are a few issues. When I am trying to register the security key with my fingerprint, the Set up button is grayed out. This is with a Feitian FIDO2 BioPass security key which has the fingerprint sensor. The Windows 10 version is 1903 enterprise.

Also, although I get this option in the Windows 10 sign-in settings of the computer, I don't get the option to register the security key at https://myprofile.microsoft.com/

EDIT: ok, I was able to set the fingerprints after first resetting the security key and then setting a PIN on it. After setting a PIN, the option to set fingerprints was enabled. But now I have another issue: although I seem to have finished the setup of the security key, when I attempt to sign-in to my account with it at the Windows sign-in screen, it simply says "This security key doesn't look familiar. Please try a different one."

I'm stumped. Appreciate any help with this!