Google generates bad permalinks

I’ve never seen this behavior before & it’s basically rendering broken permalinks to my blog fr. Google search. Here’s the permalink format for my blog:

http://www.richardsilverstein.com/tikun_olam/2006/01/03/jack-abramoffs-youth-from-twisted-orthodox-judaism-to-young-republican-fanaticism/

and here’s how Google is rendering this link:

http://www.richardsilverstein.com/tikun_olam/2006/01/jack-abramoffs-youth-from-twisted-orthodox-judaism-to-young-republican-fanaticism/

You can see that in the date format Google is omitting the day of the month & only including the month & yr. Can anyone figure out why this might be happening. I have my WP permalink structure set to be “Date/Name Based” (which should generate a year/month/day format).

I’ve just upgraded last night (before the link problem developed) to the latest version of the Google Sitemap plugin. Could that have caused this? I can’t figure out where Google’s picking up the wrong permalink format.

I’d love to hear anyone’s ideas on this.