Hello,

This happens because these images are in portrait mode and need more height than the given. When the next image is in portrait mode, the image displays properly. You can try adding this css in General > Custom Codes > Custom Css:

@media (max-width: 1024px){
.cl-justify-gallery>div img {
    display: block;
 
    margin-right: auto;
    margin-left: auto;
    width: 50%;
    
}
}

This will make the images show in full view. Result: https://ibb.co/jZ826dX

Best regards!