Incorrect / encrypted usernames displayed to user when using Yubikey

[kysu1313]

Hello, I am in the process of adding FIDO2 passwordless / usernameless login to a website. I have run into an issue where if a user has more than one account stored on a Yubikey, and they try to login, they will see the popup where they are supposed to select the account they want to login with but the usernames look like they are encrypted, so you can't tell which account you are selecting.

I have this issue on my website and I have also been able to reproduce the issue on the passwordless demo website

This is a screenshot of what it looks like to the user (note the usernames should be "test" and "test1"):

I have tested the same scenario on Github, adding multiple accounts on a single Yubikey and then logging in with it and the names show up correctly.

If you have any idea or solution I would really appreciate it.

I am using a YubiKey 5 NFC.
The safari version is: 17.1.
The version of Mac OS is Monterey, 12.7.1