I'm trying to setup a login / registration process in our sandboxes and am getting this error when signing up "Invalid field UserPreferencesHideS1BrowserUI" . Is this new and is there something in the documentation I am missing? 

In Management: Login and Registration
Community Builder Page: login

• Allow Company username and password checked
• Community Builder Page: Forgot Password
• VF Page: Change Password
• Allow external users to self-register: checked
• Community Builder Page: Register
• Profile (Self-Service User)
• Account: (Generic account)
• -- this avoids the Person accounts requirement.

I'm trying to setup a login / registration process in our sandboxes and am getting this error when signing up "Invalid field UserPreferencesHideS1BrowserUI" . Is this new and is there something in the documentation I am missing? 

In Management: Login and Registration
Community Builder Page: login

• Allow Company username and password checked
• Community Builder Page: Forgot Password
• VF Page: Change Password
• Allow external users to self-register: checked
• Community Builder Page: Register
• Profile (Self-Service User)
• Account: (Generic account)
• -- this avoids the Person accounts requirement.