Tweet content downloading but not displaying

The problem was that I removed the full_html text format editor. When upgrading from Drupal 7 a second full_html editors was created so I removed one, apparently the wrong one. Unfortunately it isn't deleted when removed so isn't as easy as just renaming my new editor to 'full_html'.
Now I have to figure out how to either re-activate the full_html editor or change the machine name of my existing one.
This issue can be closed.