Set slider images in data-bgslider=”images/1.jpg|images/2.jpg….” attribute as display in below example code. Do not put blank space between image path string.
<section class="intro-section"> <div class="container"> ... </div> <!-- Background slider --> <div class="bg-section full-wh"> <div class="bgslider" data-bgslider="images/medical_01.jpg|images/medical_02.jpg|images/medical_03.jpg|images/medical_04.jpg|images/medical_05.jpg"></div> </div> <!-- Background slider --> <b class="full-wh overlay"></b> </section>