Only 1 voucher appearing on iPad

I have a bizarre problem. When viewing my development Couponpress site in Safari on the iPad 4 it only shows one voucher on the front page (Recently Added Offers & Coupons section), even though there are several coupons there and they appear fine in the carousel and the right hand bar. It works fine on all other browsers, including iPod. Any ideas? This used to work fine before I went on holiday for a couple of weeks and got back recently.