Uploaded images not showing

I have a WordPress multi-site server set up. It was recently upgraded to v4.4.2 from v4.4.2 and now uploaded images are not loading.
It appears to be an issue with how WP rewrites URLs. When I uploaded an image, the URL on the page is http://servername.example.com/anothersamplesite/files/2016/03/9ff-GT9-R.jpg
When I go to edit the site, under Sites, (site name), settings, the upload path is wp-content/blogs.dir/14/files. I checked that path under wp-content and the file exists and has rw permission for all.
Here are the relevant parts of my .htaccess:
# add a trailing slash to /wp-admin
RewriteRule ^([_0-9a-zA-Z-]+/)?wp-admin$ $1wp-admin/ [R=301,L]

# protect wp-config.php
<files wp-config.php>
order allow,deny
deny from all
</files>

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]

Any help would be appreciated.

Thanks