Mapped Domain suffixes "/blog" and causes recursive redirect

I attempted to configure the domain mapping plugin to configure a multisite blog, http://whnlive.com/blog/omt as it's own URL: http://liveox.com.
The Domain configuration page automatically suffixes "/blog" to the page -> http://liveox.com/blog/ Accessing this results in a redirect loop, hence I cannot utilize the the plugin. Other configuration values: Network redirect: OFF. Network DNS is not redirected (doesn't work when it is either).
What cuases the inclusion of the "/blog" suffix when it is not specified? How can I set parameters to adjust for this? Is there a way to turn off the automatic suffix?