W3 Total cache CDN missing images in HTML output

I’m having issues with 0.9.3 on WP 3.7.1.
When I turn the CDN on (using rackspace) all the Images are uploaded from the media library fine, however with the CDN turned on some of the images don’t display. An example is the theme logo in wp-uploads as shown:

CDN TURNED ON

<a href="http://hk.careerintlinc.com/" title="Your Recruitment Partner">
	<img src="http://40ecffe71785e3303903-2a99e451ec3e5423bf25938e3fad0683.r51.cf2.rackcdn.com" alt="Career International Hong Kong" />
</a>

CDN TURNED OFF

<a href="http://hk.careerintlinc.com/" title="Your Recruitment Partner">
	<img src="/wp-content/uploads/2013/05/Career-International-Logo-200x50.png" alt="Career International Hong Kong">
</a>

As you can see, the CDN hostname replaces the image URL on the localhost, but is missing the file path.

http://wordpress.org/plugins/w3-total-cache/