Service account not auth'ing as expected

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Please confirm the following:

• I have upgraded to the latest GYB release from https://github.com/jay0lee/got-your-back/releases and I still have this issue.
  Yes, this is a fresh install
• I am typing the command as described in the GAM Wiki at https://github.com/jay0lee/got-your-back/wiki
  Yes, although the Wiki has steps that seem to be automatically done during setup, such as creating the oauth2service json file

Full steps to reproduce the issue:

1. Added the necessary scopes and waited. It's still an issue after about 30 minutes
2. Hit 'y' during setup for admin use and entered a user's email address
3. Received the error below. The same occurs when running check-service-account outside of setup

Expected outcome (what are you trying to do?): Use a service account

Actual outcome (what errors or bad behavior do you see instead?):

Checking service account DwD for user@domain.com...
Please run

gyb --action create-project
gyb --action check-service-account

to create and configure a service account.
ERROR: None

gyb --action create-project --email user@domain.com     
File C:\GYB\oauth2service.json already exists. Please delete or rename it before attempting to create another project.

Start with the check-service-account and create-project actions described in the report, reproducing the failure after a fresh install. Inspect how these actions use C:\GYB\oauth2service.json, including the existing-file condition, and verify that a configured service account can authenticate for the specified user without the error.