fid03
Site is Reddit.
What happens is, the site displays the QR code (on my desktop PC). I open the Yubikey app and scan the QR code, but then the error appears on the phone.
I was able to set up 2FA using a different authenticator.
Yubikey's app was recently updated and I think this was the first new site I've tried adding since the update.
Could this have something to do with it rejecting the addition of a new site since I'm running GOS?