When I use an editor in the CMS, the styling of the Header and other elements (like ul, ol, ...) is not done. I just looks like a regular paragraph (but when I look in the Frontend, the H-element is there).
In the pages module, i receive an error (Cannot read property 'getSelection' of undefined ckeditor.js:134), but not when I use the blog module for example, so I don't think that the error is the cause of the Html-element problem.

I've downloaded the latest version of Fork (3.9.3) and haven't had the problem before. Other websites I've made with Fork work perfect.