I created a new Campaign tab and detail page in my sandbox (Rockaway, Summer 16.) Everything is fine there.
When I moved the pages to production (Banzai, Spring 16), I get an error on both the tab and detail page "Invalid Model Service “salesforce” on Model “Campaign” ". In addition, on my detail page, there are native object fields (most of my problems are on the Campaign Members native SF object) where the object fields are included in the model, but not available in the model field picker.
For example, Email is a native Campaign Member field, but not showing in the field picker. therefore, I have lots of model field errors on this page.
Are these problems related, and how can I resolve them?