Homepage Page Content Can't Be Changed Based on Market Setting

[Havik]

Hai everyone,

We have a custom Dawn Shopify theme that have been created by a 3rd party. Since the new update from Shopify for the market-based content customisation, we would like to use it for market based promotions. We want to change our hero banner on the homepage to change based on the market they in but I got the message on the customiser as the pic below,

But when going to other pages, it works but not all of them. This is quite annoying and frustrating to deal with. Any feedback on this issue is appreciated. Thanks

P/S: we did also check the article that is in the learn more. It's not helpful in our context.

[Havik · Accepted solution]

Well, I think I know what's up for this. Basically the homepage of our site is the vintage index template. We have to use the JSON index template for the market context to work. Welp, looks like it's the UI designers problem to migrate it from the vintage to JSON. 

For reference,
https://community.shopify.com/c/shopify-design/custom-homepage-liquid-template/td-p/1172417
https://community.shopify.com/c/technical-q-a/index-liquid-to-index-json-2-0-migration/td-p/1662450