Gallery primary image is covered by second image

Hiya,

The website I'm currently working on has a fair bit of custom code, but as far as I can tell none of it should be applying to my galleries in a way that causes the problem I seem to be having. 

My Primary image seems to be covered by the second image in my gallery on load, when you scroll to the next image and then scroll back the issue does not persist. 

For the life of me I have not been able to figure out why this is happening, is anyone able to take a look?

The website is: https://krill-stingray-4zxl.squarespace.com/
The password is: Luci2023

Hi,

Which page are you referring to? I don't see this on homepage

On the individual sculpture pages, for example: https://krill-stingray-4zxl.squarespace.com/sculpture/ascension-on-the-shoulders-of-giants

It occurs on every sculpture page.

Try remove this code & check again

.collection-642166ad866eb26596821527.view-item .page-section:not([data-section-id="64219593b23eed9013b23a6a"], section[data-section-id="643a873cbd20c01b648d9da5"]):nth-child(2) {
        width:37%;
        margin-left: 0 !important;
        z-index: 8;
        top: 0
    }

Without that snippet of code the side by side sections no longer work and it breaks the display of all the sculpture pages unfortunately.