Hi Kyle!

Please open "/js/kose.js" file and do as following:

1. Find this code:

if (siteWidth > 1161) {
                                
    // Apply custom z-index to make the first item's image on top
    var zIndex = 50;
    $(this).find('.uxb-tmnl-testimonial-item .uxb-tmnl-testimonial-thumbnail').each(function() {
        $(this).css('z-index', zIndex);
       zIndex -= 1;
    });
                            
}

Remove the "if" condition out so as a result it will be:

// Apply custom z-index to make the first item's image on top
var zIndex = 50;
$(this).find('.uxb-tmnl-testimonial-item .uxb-tmnl-testimonial-thumbnail').each(function() {
    $(this).css('z-index', zIndex);
    zIndex -= 1;
});

2. Find another code (it is located a bit right below the above code):

if (siteWidth > 1161) {
                                
                                // Reset custom z-index
                                $(this).find('.uxb-tmnl-testimonial-item .uxb-tmnl-testimonial-thumbnail').each(function() {
    
                                    if ($('html').hasClass('touch')) {
                                        $(this).stop().animate({
                                            opacity : 0
                                        });
                                    } else {
                                        $(this).css({
                                            zIndex : '',
                                            display : 'none',
                                        });
                                    }
    
                                });
    
                                // Apply a new custom z-index to the next item's image that will be displayed
                                var nextItem = data.items.visible;
    
                                if ($('html').hasClass('touch')) {
                                    $(nextItem).find('.uxb-tmnl-testimonial-thumbnail').stop().animate({
                                        opacity : 1
                                    });
                                } else {
                                    $(nextItem).find('.uxb-tmnl-testimonial-thumbnail').css({
                                        zIndex : 50,
                                        display : 'block',
                                    });
                                }
                            
                            }

Again, do the same as 1. to remove the "if" condition out of this code block.

This should fix the bug. :)

Regards,
Paul