Select2 jQuery code work after Saving Menu in WordPress menu items

I have WordPress theme i added the new select box based on select2 plugin. When i add new menu item before click on Save Menu button don't apply the select2 jquery code over the select box. But after click on Save Menu directly applied select2 jquery code over the select box

More info from this image below

The image show the select2 select box before click on Save Menu button and after click on Save Menu button

This is my jquery code from js file

$(".bsnselect").select2({
    placeholder: "Select ...",
    width: '100%',
    minimumResultsForSearch: Infinity,
    theme: "classic"
});

This code from a php file for enqueue the select2 files

function YPE_bsn_backend() {
    wp_enqueue_script( 'select2-js', plugins_url( '/js/select2.min.js', __FILE__ ), array( 'jquery' ), null, true );
}
add_action( 'admin_enqueue_scripts', 'YPE_bsn_backend' );
function YPE_bsn_backend() {
    wp_enqueue_style( 'select2-css', plugins_url( '/css/select2.min.css', __FILE__ ) );
}
add_action( 'admin_enqueue_scripts', 'YPE_bsn_backend' );