A fresh Windows setup (version 1903) was installed on my notebook. The integrated smart card reader works fine, also with gpg4win, version 3.1.11. However, both Yubikey 5 are not recognized any more.
"gpg --card-status" in case of inserted smart card, show expected data and the cards are working with gpg.
However, both Yubikey will not be detected, the message is "gpg: selecting card failed: No such device".
All OpenPGP smart cards are recognized and they are working fine. But both Yubikey fail. I contacted Yubikey support, but no reply in this matter so far for several days and few e-mails submitted.
Yubikey is working fine for U2F application and if tested Yubikey Manager, Yubikey Personalization Tool or Yubikey Authenticator. It fails only by GPG and of course by SSH. With the old Windows image smart cards and Yubikey were working.
I am a little bit derailed at the moment. Advice would be appreciated!