WordPress Multisite Broken Images

Hello, I’ve got a problem with one of my clients sites on a WP Multisite. After uploading images to sub-sites the image is broken, however I can see that it’s uploaded to the server if I check via FTP. Any ideas on how to fix the broken images?

Some helpful specs to help troubleshoot:

.htaccess file:

# BEGIN WordPress
RewriteEngine On
RewriteBase /
RewriteRule ^index\.php$ - [L]

# uploaded files
RewriteRule ^([_0-9a-zA-Z-]+/)?files/(.+) wp-includes/ms-files.php?file=$2 [L]

# add a trailing slash to /wp-admin
RewriteRule ^([_0-9a-zA-Z-]+/)?wp-admin$ $1wp-admin/ [R=301,L]

RewriteCond %{REQUEST_FILENAME} -f [OR]
RewriteCond %{REQUEST_FILENAME} -d
RewriteRule ^ - [L]
RewriteRule ^([_0-9a-zA-Z-]+/)?(wp-(content|admin|includes).*) $2 [L]
RewriteRule ^([_0-9a-zA-Z-]+/)?(.*\.php)$ $2 [L]
RewriteRule . index.php [L]
# END WordPress

Located in wp-config.php:
define( 'UPLOADS', ''.'media' );

also:

/** Enable Multi-Site options in WordPress. */
define('WP_ALLOW_MULTISITE', true);
define('MULTISITE', true);
define('SUBDOMAIN_INSTALL', false);
define('DOMAIN_CURRENT_SITE', 'mysite.com');
define('PATH_CURRENT_SITE', '/');
define('SITE_ID_CURRENT_SITE', 1);
define('BLOG_ID_CURRENT_SITE', 1);

Main site images: https://www.mysite.com/media/imagehere.jpg
Sub site images: https://www.mysite.com/media/sites/2/2013/05/imagehere.jpg

Let me know if you have other questions that I can help, but I can’t figure this one out. Thanks for your help in advance.