Some sitemaps aren't showing mapped domain

So we have a large network and run mapped domains on it. For some reason we are getting some inconsistent results in the sitemap output.

Some will show the mapped domain (which is what we want) like this site:

http://bergfeldagency.com/sitemap.xml

Others are showing the original site subdomain site instead. Both are using the same plugin and are setup the same as far as database entries and setup go. Here is an example of an incorrect site:

http://swconway.com/sitemap.xml