Community Auth: Login errors

I have an existing CI 3.0.6 application that I'm trying to integrate CA into. I've followed the CA installation instructions and was able to create an example user. I'm using the Example controller from CA.

When I try to login I get the following error:
Login Error #3/5: Invalid Username, Email Address, or Password.

Username, email address and password are all case sensitive.

I've copied/pasted the credentials from the create_user() function so I know they are correct.

CI Log File:
INFO - 2016-07-23 20:57:15 --> Config Class Initialized

INFO - 2016-07-23 20:57:15 --> Hooks Class Initialized
DEBUG - 2016-07-23 20:57:15 --> UTF-8 Support Enabled
INFO - 2016-07-23 20:57:15 --> Utf8 Class Initialized
INFO - 2016-07-23 20:57:15 --> URI Class Initialized
INFO - 2016-07-23 20:57:15 --> Router Class Initialized
INFO - 2016-07-23 20:57:15 --> Output Class Initialized
INFO - 2016-07-23 20:57:15 --> Security Class Initialized
DEBUG - 2016-07-23 20:57:15 --> Global POST, GET and COOKIE data sanitized
INFO - 2016-07-23 20:57:15 --> Input Class Initialized
INFO - 2016-07-23 20:57:15 --> Language Class Initialized
INFO - 2016-07-23 20:57:15 --> Loader Class Initialized
DEBUG - 2016-07-23 20:57:15 --> Config file loaded: /project/application/third_party/community_auth/config/db_tables.php
DEBUG - 2016-07-23 20:57:15 --> Config file loaded: /project/application/third_party/community_auth/config/authentication.php
INFO - 2016-07-23 20:57:15 --> Helper loaded: url_helper
INFO - 2016-07-23 20:57:15 --> Helper loaded: file_helper
INFO - 2016-07-23 20:57:15 --> Helper loaded: date_helper
INFO - 2016-07-23 20:57:15 --> Helper loaded: string_helper
INFO - 2016-07-23 20:57:15 --> Helper loaded: misc_helper
INFO - 2016-07-23 20:57:15 --> Helper loaded: datetime_helper
INFO - 2016-07-23 20:57:15 --> Helper loaded: javascript_helper
INFO - 2016-07-23 20:57:15 --> Helper loaded: serialization_helper
INFO - 2016-07-23 20:57:15 --> Helper loaded: cookie_helper
INFO - 2016-07-23 20:57:15 --> Database Driver Class Initialized
INFO - 2016-07-23 20:57:15 --> Session: Class initialized using 'files' driver.
DEBUG - 2016-07-23 20:57:15 --> Encryption: Auto-configured driver 'openssl'.
INFO - 2016-07-23 20:57:15 --> Encryption: OpenSSL initialized with method AES-128-CBC.
INFO - 2016-07-23 20:57:15 --> Encryption Class Initialized
INFO - 2016-07-23 20:57:15 --> Model Class Initialized
INFO - 2016-07-23 20:57:15 --> Model Class Initialized
INFO - 2016-07-23 20:57:15 --> Model Class Initialized
INFO - 2016-07-23 20:57:15 --> Controller Class Initialized
INFO - 2016-07-23 20:57:15 --> Helper loaded: form_helper
DEBUG - 2016-07-23 20:57:15 --> 
 string     = skunkbot
 password   = PepeLePew7
 form_token = 
 token_jar  = []
INFO - 2016-07-23 20:57:15 --> File loaded: /project/application/third_party/community_auth/views/examples/page_header.php
INFO - 2016-07-23 20:57:15 --> File loaded: /project/application/third_party/community_auth/views/examples/login_form.php
INFO - 2016-07-23 20:57:15 --> File loaded: /project/application/third_party/community_auth/views/examples/page_footer.php
INFO - 2016-07-23 20:57:15 --> Final output sent to browser
DEBUG - 2016-07-23 20:57:15 --> Total execution time: 0.0579



This is my first time trying to use Community Auth.

Anyone have some ideas?