I have my emergency kit with the Secret Key. I am prompted to sign in again and I get an authentication error. It tells me what the beginning of the secret key is supposed to be, and that is different from what is in the emergency kit.
1Password Version: 1Password 6 Version 6.8.6 (686004)
Extension Version: Not Provided
OS Version: OS High Sierra 10.13.2
Sync Type: icloud