7.1 Instagram feed shows 7 posts but last one is always blank?

Site URL: https://carrot-cricket-zj9b.squarespace.com/

Hi, this is for https://carrot-cricket-zj9b.squarespace.com/ with the temp pass: LazarusODF

I made some adjustments to the code to remove all the space between and on either side of the feed, and add an overlay with the on-brand colour. It is set to show 7 posts on a single line. However, the 7th block remains white with no overlay, and even if I change the number of posts displayed to 14, it just shows two lines and for BOTH lines, the 7th post is white with no overlay showing.

It's almost as if the section is no longer full width but just fully aligned right with the perfect size for a single post left as margin on the right...

Any ideas?

I adjusted the instagram feed with the following code:

// Instagram feed overlay //
div#block-f8ada25bd4d266a04a60 .margin-wrapper {
   position: relative;
}
div#block-f8ada25bd4d266a04a60 .margin-wrapper a:before {
   position: absolute;
   content: "";
   background: rgba(0,0,0,0.5);
   left: 0;
   right: 0;
   top: 0;
   bottom: 0;
   z-index: 100;
   display: block;
}
div#block-f8ada25bd4d266a04a60 .margin-wrapper a:hover:before {
   opacity: 0;
}

// Instagram feed full width //
[data-section-id="5f29899f4cbd4c3a7fb4d0c7"] .content-wrapper {
    padding-left: 0 !important;
    padding-right: 0 !important;
    max-width: 100%;
    padding-bottom: 0 !important;
}
div#block-f8ada25bd4d266a04a60 {
    padding-bottom: 0;
}