The Events Calendar – Is there a year 2013 bug?

I’m having a bizarre thing happen on my development site.

I’m passing this url to a jquery script:

http://www.shopwaughchapel.com/events-widget/?month=03&year=2013&getAll=true

You’ll see when you go to that url, you get the 404.php page. Problem is when i change the year to 2012, the url works fine.

I’m having this consisten problem across 3 websites that all use The Events Calendar plugin. The problem occurs with the 2013 year.

Has anyone else seen this issue?