Checkout UI Extension - Targeting on Thank You page not working

[Danyel1980]

Hello all,

I have already created many Checkout UI Extensions and all works fine. 
But mysteriously I can't reach my current app on the 'Thank You' page.
On my Dev Store and locally it works perfectly, so there I can see banner.
I have also took the thank you example exactly 1:1 from the documentation and it works on locally and my own Dev Store perfectly but when I deploy my code to the target shop then It doesn`t appear on the Thank-You Page.
On the checkout editor I can see my app but I have noticed a difference between working and not working version, visible on the screenshots below.

working version:

NOT working version

Can somebody help me?

[Danyel1980]

Here I can not see the info banner on the "Thank you page".
Not working environment

Here I can see the info banner on the "Thank you page".
On my development shop. Here it works

What is the difference between both systems?

[Shahaab_Manzar]

Hey, did you solve this? Facing the same issue, On dev Store the app runs fine, but after deploying  app is not rendering on Thank you page. 

[samir-growwx]

Hello @Danyel1980 , facing the same problem. this is a CRITICAL issue since checkout UI extension has stopped working in prod. were you able to resolve this ?

[Danyel1980]

Hello Samir,
unfortunately no solution. The problem is still there.

[samir-growwx]

Is there a way to escalate this to Shopify since it's pending for more than a month now ?

[Danyel1980]

I hope that Shopify will register this post, handle it immediately, and fix the problem.