Hi Phil, here's the live url:
I played with the feed's cache duration and changed it to refresh hourly and that seemed to resolve it to a certain extent. However, in general it seems to only refresh the feed around 10AM CST every day. This is confusing since I have it set to refresh hourly. Also it seems that once or twice a week, it will go sometimes up to 2 or 3 days without clearing the feed cache and then it will start working once again. Have you seen this behavior before?