Variation images for color don’t work

I’ve added three color options for a product I just created. I clicked into each variation and added an image. After saving and updating the product the image still doesn’t change when I select a color on the live product view. The images have been added to the product gallery too. Any idea on how to get it to work? Here’s a test link: https://shop.reverbparty.com/product/mixtape-t-shirt/

Thanks!