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Showcase main image per product variant not working

Hi webflow! I have been trying to develop an ecommerce website, but an encountered issue stopped me from finishing it. On my Categories and Product pages, you may encounter a product variant switcher, it is supposed to showcase an unique main image per variant. This feature is not working properly and I am asking for help on how to solve this. Also, some tips for styling this switcher would be very appreciated as well. Thank you in advance!

Here is my site Read-Only:

Here is my live site:

Feel free to express your opinion and tips that I could use to improve my webpage(some things are still on development)