Aakashi Yes, unfortunately it does. This is what I have to do: -I have the security key plugged in -I lock my account (WIN+L) -I see my lockscreen, and need to press CTRL+ALT+DEL -I press CTRL+ALT+DEL -I'm presented with my Image, Name and the "Sign in Options" Link -I click on the security-key icon, nothing happens -I click on password, and the password field shows -I click back on the security-key icon, and now I'm presented with the PIN field (which was not showing before) -I enter my PIN and confirm with the Button on my Yubikey 5 Series and I'm in. On each lock/unlock, it's the same procedure. When restarting the computer, it's the same. It seems that the key is not properly initialized. Another method that works is: -I have the security key plugged in -I lock my account (WIN+L) -I see my lockscreen, and need to press CTRL+ALT+DEL -I press CTRL+ALT+DEL -I replug the key -Now I'm presented with the option to enter the PIN and it works.