My configuration was:Ok friend clearly has a character problem.
Try this solution:
Fixing the Character Encoding Mismatch Problem in WordPress
Step 1) Open the ‘wp-config.php’ file in a text editor such as notepad (the wp-config.php file can be found on the directory where you installed WordPress).
Step 2) Find the following two lines and comment them out:
Code:define('DB_CHARSET', 'utf8'); define('DB_COLLATE', '');
They should look like the following after you comment them out:
Code://define('DB_CHARSET', 'utf8'); //define('DB_COLLATE', '');
Step 3) Now upload the updated ‘wp-config.php’ file to your webhost (overwriting the old one).
This character encoding problem can happen after a database upgrade too so it doesn’t hurt to keep this trick in your mind just in case.
define( 'DB_CHARSET', 'utf8mb4' );
define('DB_COLLATE', '');
If I follow your steps, the titles are shown with strange characters and in Post in Administration they are shown as (no title).
I've done a roll-back to the previous configuration of wp-config.php