Media library duplicating results view in ckeditor
This is a shot in the dark, but are you running jQuery Update module? If not, you should give it a try and set the admin area to use jQuery 1.7. Drupal 7 core shipped with jQuery 1.4, and some modules evolved to needing a newer version of jQuery. jQuery Update will solve that for you.

https://www.drupal.org/project/jquery_update