I assume you are referring to the "Brand New Posts" island on your site.
It seems okay now possibly the cache was in play at the time.
There is a topic called food game but it is not on your list.
On the one month value.
All it does is exclude anything older than a month.
Even if you allowed 2000 posts in the island the default would only go back 30 days to display.
In your case you limit it to ten posts.
And you have quite a bit of traffic.
If you want to change it search for.
$one_month = $html->get_date() - (86400 *30);
Around line 70 on the same file.
The 86400 is the number of seconds per day.
the value of 30 makes it days.
So if you want say 14days change the 30 to 14.
If you start seeing less that ten posts in the island then it is because there are less than ten in 14 days.