I'm trying to get this awesome setup working but when running ./gpg.sh it hangs when trying to change the PIN. It correctly selects the option 1 but then it never types the pin, after it timesout I can see the 123456.

Eg:

gpg/card> admin
Admin commands are allowed

gpg/card> passwd
gpg: OpenPGP card no. <redacted> detected

1 - change PIN
2 - unblock PIN
3 - change Admin PIN