There was a problem reading the security key. Try again

I had my security keys all set using FIDO2 Webauthn.

Today I had to remove (deauthorize one key) and add another.

Now, whenever I choose Read Key, I get the message " There was a problem reading the security key. Try again."

In experimenting, I deauthorized all the keys to start from scratch and now I can’t register any.

Note that I tried registering the new Series 5 security key using " YubiKey OTP security key" and it failed.

The keys work fine with other apps. Any idea how to fix this?

It is working again. I used the keys on another web site then exited BW (on the web) and restarted it, and now it is working.