I have a Drupal 7 site that is using the CKEditor module (version 7.x-1.18). When you click on the link it toggles back and forth from "Switch to plain text editor" to "Switch to rich text editor". I accidentally changed the dropdown value in the "More information about text formats to 'Plain text' and now my Switch to link is gone and the "Full HTML" is disabled. Now my content is displaying as HTMl tag elements in edit and live view. I am not getting any JS errors on the console.
I have researched this and have tried everything I can think of. One suggestion was to update the filter_format table and make sure the status=1 for the full_html. The value was already set. This is day 3 of researching this. Any ideas would be appreciated.