"checkout_completed" not sending in Shopify Web Pixel

[buddingpaper]

I looked everywhere and found this tentative solution: https://community.shopify.com/c/technical-q-a/custom-pixel-checkout-completed-event-not-triggered-af...

I am waiting till this works and can confirm the fix, but even if it does, why is this something I have to do?

I can confirm the Shopify Web Pixel works and sends that event on other stores, but it doesn't on my store, so?

Is it because of a certain checkout page type?

I'm using one-page 

Please help me 🙂