Product Page Glitch where Clicking a Photo Resets Location/Make product images sticky in Brooklyn

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Hi all,

Is there any code I could edit that makes the product images on the left side of our page sticky as the user scrolls down the page?

We're encountering a glitch where if a user scrolls halfway down the page (where the large selected image is partially displayed and the thumbnails are beneath it) and clicks on one thumbnail and then another, the page automatically scrolls down.

Any thoughts on this?

Link to the product page is: