I have a Yubikey version 5.2.7 and I can't generate any new certificates on yubikey manager app, which is weird since I have already generated two certs (on 9d slot) and they worked fine.
Now the following message pops up:
"Failed connecting to the YubiKey. Make sure the application has the required permissions."
However, I ran the app as admin but the same error is showing up.
I read the docs from yubico but it doesn't provide any further help.
I also tried to reset the key to factory settings, but it didn't change anything.