Thumbnail images not showing

After upgrade to WordPress 3.5, the video thumbnails are not showing anymore. It appears to be an issue with oembed.

I made this change to youtube_simplegallery.php to fix the issue:

Find and replace this:
$thumb[1] = str_replace('?fs=1&feature=oembed', '', $thumb[1]);

With this:
$thumb[1] = str_replace('?feature=oembed', '', $thumb[1]);

https://www.ads-software.com/extend/plugins/youtube-simplegallery/