I'm using DNN 9 + Rzr Cart, when you test the product slider at 320px to 480 px, the products disappear. Could it be that old version of Owl-Carousel. Also, in the razorcart.slider file there is no reference for 320 under the vm.carousel function...Is there a fix for this or can anyone point me in the right direction? Thanks! 

From  razorcart.slide file:
vm.carousel = function (object) {
            $timeout(function () {
                angular.element(document.getElementById('owl-carousel')).owlCarousel({
                    loop: true,
                    margin: 10,
                    responsiveClass: true,
                    responsive: {
                        0: { items: 1, nav: false },
                        480: { items: 2, nav: true },
                        768: { items: 3, nav: true },
                        992: { items: 4, nav: true },
                        1200: { items: 5, nav: true }
                    }