so this is a newbie question and probably my issue.
so if I use an NFC key and use webauth on my Chromebook to register, it obviously registers it as a USB key and works correctly on Chromebook.
when I try to use as NFC key on my android phone it isn’t recognized when I select NFC key for the type of key. If I plug into USB port on phone it works fine. I know yubikey has a selection for my key that has NFC, but Webauth does not.
So do I need to register the key directly on the phone using NFC which is a PITA because of the master password complexity?
I registered my NFC key, under both Yubikey OTP and WebAuthn, on a desktop, and it works fine on an iPhone. I will note that there was an issue with Google/Apple/NFC keys for many months that was just resolved on Apple’s last update. No use to you but I did have to remove and re-add the keys to regain NFC functionality. Something you may want to try.
You may want to try setting it up as Yubikey OTP instead of WebAuthn to rule out that as an issue. I am trying to remember - does BW have a checkbox for NFC you have to tick if a key will use it? If so, I assume you checked it. NFC with BW has been fine for me. It was Google that stopped recognizing it, which eventually turned out to be an Apple issue.