Grid glitch - First image not showing up, sliders glitching

The first grid area is missing the slider on my published website, I have tried moving the grid content around and it is always the first grid box that is missing the slider, the other sliders in the grid are quite glitchy as well, I thought this may be to do with the image sizes but I have since lowered the image size and it is still not smooth or showing the first slider. The first slider is visible in preview etc but it does not show up when published.

It’s in the laser cutting page under the materials tab on this webpage:

Here is my site Read-Only: LINK