Filter Issue?

Those are HTML special characters

https://www.degraeve.com/reference/specialcharacters.php

seems like something is parchasing somewhere, using PHP functions

htmlentities()
htmlspecialchars()

So, htmlspecialchars_decode() should do the trick?

Yes, you can try that. It depends where it is encoded/decoded. Maybe it’s the theme or from functions.php using hook for the_content, something like

add_filter( 'the_content', 'filter_function_name' );

I had my own function to clean the data prior to input to the database. One of them was htmlspecialchars() which was responsible for adding the characters (WP requires the data to be raw). I simply commented out the function and no more htmlspecialchars() are displayed in the “Description”.

Thank You!

Glad it’s solve. Have a nice day!