Bug in the visual view of the editor

Have you tried:

– deactivating all plugins to see if this resolves the problem. If this works, re-activate the plugins one by one until you find the problematic plugin(s).

– switching to the default theme to rule out any theme-specific problems.

– resetting the plugins folder by FTP or PhpMyAdmin. Sometimes, an apparently inactive plugin can still cause problems.

– re-uploading all files & folders – except the wp-content folder – from a fresh download of WordPress. Make sure that you delete the old copies of files & folder before uploading the new ones.

I deactivated and deleted all plugins, I also tried to go back to the basic wp theme and it did not solve the trouble.

I am afraid to re-load all the files except the wp-content so I will wait for that.

See this link : https://www.juliecloutier.com/trouble/editortrouble.jpg

I have none of the editor’s menu for choosing the fonts, etc.. it’s like the wisywig does not work anymore.

I will wait for that.

That’s the next step if the others have not worked.

What if I reload some files that affects the theme or anything else related to my network multisite install. Obviously I do not want to re-load the config file nor the htaccess file. Other then that if I do not touch the wp-content, will it erased anything important ?

Your site’s content is all stored in your database – with the exception of uploaded media files stored in the wp-content folder. So as long as you avoid that folder, you will be fine. All you are doing is uploading a fresh set of WordPress core files.

OK thank you, I will try that tomorrow and let you know if that works.

I found an awesome article on the web : https://livelonger.hubpages.com/hub/Fix-Missing-WordPress-Visual-Editor

This person described the exact problem that I had and the solution worked. To add a line in the bottom of the config file right before the require_once line.
define(‘CONCATENATE_SCRIPTS’, false );

Problem solved instantly.