Problem Loading Slider

Hi!
I really like the functionality of this slider and it works really well! I’ve used it on the homepage of my client’s test site: https://dev.landclaimscoalition.ca/

The problem I run into is when navigating away from the homepage then returning to it, the slider doesn’t show up unless the page is refreshed. This shouldn’t be happening…

Can you help?

Thanks!

The page I need help with: [log in to see the link]