Link blocks disappear whilst scrolling on phone layout?

Hi there all

Im having a problem with these link blocks i have on the page in phone layout view. they seem to work great on the other views but on phone layout view, when you scroll down the page they disappear for no reason?? i just cant figure it out??

here is my site, any tips would be very gratefully received.

https://preview.webflow.com/preview/book-jons-layout-a4f398aced987a2cbd0d9f?utm_source=book-jons-layout-a4f398aced987a2cbd0d9f&preview=ca98f1c1fefab09f0fdd87ad056e2746

Cheers


Here is my site Read-Only: LINK
(how to share your site Read-Only link)