Force Sortable portfolio not using get_excerpt
First you need Kallyas Child to achieve this, if you don’t have Kallyas Child you need to read this first:
You need to add the following code inside Kallyas Child > functions.php.
function custom_ptf_excerpt($custom_excerpt, $exc){
return $exc;
}
add_filter('zn_portfoliosortable_excerpt', 'custom_ptf_excerpt', 99, 2);