When active, WPMUDEV hustle breaks the media library (v 4.4.4 or older) This is a temp fix.

wpmudev_hustle_media_library_fix.php

<?php
  // wpmudev_hustle_media_library_fix
  // Add this to the functions.php file or use Advanced Scripts to add it when plugins are loaded
  function wpmudev_hustle_dequeue_script() {
    if( isset( $_GET['ct_builder'] ) ){
      wp_dequeue_script( 'hui_scripts' );
      wp_dequeue_script( 'hustle_front' );
    }
  }
  add_action( 'wp_print_scripts', 'wpmudev_hustle_dequeue_script', 100 );