I have 2 size variants on website and have assigned different image for both when i change it on live website it does not change the image earlier i was working now suddenly it stopped.
Can you link to the store? Also, if you’re a merchant rather than a developer, you might be best asking on the merchant forums here: https://community.shopify.com/c/technical-q-a/bd-p/technical-qa
visdaorganix.com is the website you can check