I had inspect element in browser and you have problem with CSS Grid row height. When I had disabled all section styling and set “grid-template-rows” to 400px everything starts to work. Just check this setting out and set Grid row to your needs. (minmax). Hope that is right direction.
If this works for you then yes, but If this happened to me I will dig deeper to understand why this happened to avoid identical behaviour in feature again. If this solved your problem please check my reply as solution. Thanks
Ok I took a second look now to check whole container code for instagram section and I was able to fix it in 5 min without previous quick fix (300px). Now I did all 1fr and it works like charm. Just spend a while on this issue. You have build whole site so this should be for you easy task. hint: You have a mess in flex and grid settings for each link item but biggest problem is setting for link with CARTER image.