Add/update post meta with raw html to WYSIWYG Field

Hi,

The problem happens because the code used the function esc_attr(), it escapes HTML code and returns only a string that's why we only see the <ul><li> tag.

I've just removed it then we can see the list as well.

$benefits           =  $_POST['benefits'];
$aufgaben           =  $_POST['aufgaben'];
$fachwissen         =  $_POST['fachwissen'];

Or you can keep the function esc_attr() then use the function htmlspecialchars_decode() to convert special HTML entities back to characters.

/* Aufgaben */
function kie_job_get_aufgaben(){
  return htmlspecialchars_decode( strip_tags(rwmb_meta( 'kie_aufgaben', get_the_ID() ), '<ul><li></ul></li>') );
}