I am struggling with The Slider. MOST of the images I try to set as a Featured Image won’t display, except as a small block. The dimensions are close to and within the 1900×600 px size requirement. What is causing my JPGs and PNGs to NOT display properly in the Slider as Featured Images on the Slide posts?
You added a blank image to the slider, which is why you did not see the slider image. And another issue is that you are using different image size for all image of the slider. Which is causing the slider. So it does not look like a our demo site. Please set the same size image. Now we have changed the empty image of the slider. Please check it out.