To help everyone here
Here is THE FIX i find to the new WordPress Dashboard broken messed up pages for the base wordpress page content like Add a page, add an article. Open your FTP, open your HTCaccces files, look if there is a piracy line like : Remove all the FileasMatch Deny to the <IfModule mod_rewrite.c> , check fot another hidden HTCacces in the WP-Admin or WP-include folder and delete it. Thats is. Also it help me to add to the line to my WP-Config.php : define( ‘CONCATENATE_SCRIPTS’, false );
<FilesMatch « .(py|exe|php)$ »>
Order allow,deny
Deny from all
</FilesMatch>
<FilesMatch « ^(index.php|lock360.php|wp-l0gin.php|wp-the1me.php|wp-scr1pts.php|wp-admin.php|radio.php|content.php|about.php|wp-login.php|admin.php|mah.php|jp.php|ext.php)$ »>
Order allow,deny
Allow from all
</FilesMatch>
<IfModule mod_rewrite.c>
RewriteEngine On
RewriteBase /
RewriteRule ^index\.php$ – [L]
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule . /index.php [L]
</IfModule>