For a few months now, the News SEO module part of WordPress SEO by Yoast has not been working for us.
Google Webmaster Tools constantly reports this error:
Missing XML tag
This required tag is missing. Please add it and resubmit.
Parent tag: urlset
And looking at the XML file several times a day, it never updates, it never changes, and it never works even though we have dozens of news stories per day.