I solved the problem with this code !
function my_acf_load_value( $value, $post_id, $field )
{
// run the_content filter on all textarea values
$value = apply_filters(‘the_content’,$value);
return $value;
}
add_filter(‘acf/load_value/name=baustein_zusatzleistungen_repeater’, ‘my_acf_load_value’, 10, 3);