Change the Item Image on the Cart Page

[JHR1]

Hello, I'm using Square Online, when I add an item to the cart and go to the cart page, the image for the item that shows up isn't the same image I have marked as "primary" for that item in the Item Library. It seems to randomly choose one of the images for the item instead of the primary image. Any advice on how to change this so the primary item image displays on the cart page?