Not all examples are included in LayerSlider for jQuery.
For example, I can't find this one: https://layerslider.kreaturamedia.com/sliders/parallax-city/
Thank you for getting in touch with us. My name is Attila and I'm happy to assist you today. I appreciate your patience while we've been working towards your ticket.
Not all demo sliders were converted for the jQuery version yet. A few of the newest templates are only available for the WP version currently. But we will add them to the jQuery release as well later.