I have just upgraded to the latest version of WordPress but now the HTML editor doesn't work. All buttons, bar the media uploader icon, have disappeared. And I can't switch to the Visual editor at all.
I have already tried to:
- deactivate all plugins
- change theme
- delete cookies
- check if visual editor is enabled (it is)
I don't really know what else to do bar trying to install wordpress manually but I haven't got the slightest idea of how to do that.
Can anyone help please?