Parallax scroll on slider works for 1 slide only

I’ve built a native Webflow slider that has a fixed background image in order to have a parallax effect. It worked great until I added a further Slide - for some reason Slide 2 will not display a background image if set to ‘Fixed’, it simply vanishes. Even if I duplicate the working Slide 1, the background image vanishes. What on earth am I doing wrong?!


Here is my site Read-Only: https://preview.webflow.com/preview/dallas-design?utm_medium=preview_link&utm_source=designer&utm_content=dallas-design&preview=6d5fc86d879f5a3a0fdd63f0c0ffb3da&mode=preview
(how to share your site Read-Only link)