Something went wrong. Please check your cart or try again - Banner in POS

As the title suggests, this banner has started appearing in my POS app, in both development and production. It only seems to happen on the first app load, and disappears once the app is closed and reopened. My worry is that it’s not great for new users of the app to see an error as soon as they load the app.

I’ve removed the bulk of my code in dev and I think the error is coming from either the <Navigator> or <Screen> component:

Modal.tsx

import { Navigator, reactExtension, Screen } from '@shopify/ui-extensions-react/point-of-sale';
const Modal = () => {
  
  return (
    <Navigator>
      <Screen title="home" name="test"></Screen>
    </Navigator>
  )
}

export default reactExtension('pos.home.modal.render', () => <Modal />);  

If I remove the <Navigator> and <Screen> components, and instead just render <Text> the banner does not appear:
Modal.tsx

import { Text, reactExtension } from '@shopify/ui-extensions-react/point-of-sale';
const Modal = () => {
  
  return (
      <Text>Test</Text>
  )
}

export default reactExtension('pos.home.modal.render', () => <Modal />);  

I’m receiving no console errors in either the development console in Safari, or my terminal. I’m on the latest @shopify/ui-extensions version (pre web-components):

{
  "name": "pos-ui",
  "private": true,
  "version": "1.0.0",
  "license": "UNLICENSED",
  "dependencies": {
    "@shopify/ui-extensions": "2025.7.1",
    "@shopify/ui-extensions-react": "2025.7.1",
    "react": "^18.3.1",
    "react-reconciler": "0.29.0"
  },
  "devDependencies": {
    "@types/react": "^18.3.25"
  }
} 

Has anyone got an idea of how to fix this?

Hey @21O , thanks for flagging this, this is definitely odd. Would you be able to replicate the issue and send some logs our way? In the Shopify POS app after you replicate the issue, just go to More > Support > Report a bug and then in the “description” box, put “For: Alan_G” and link to this thread, and I can take a look on our end.

I’ll loop back with you once I have next steps. Let me know once you’ve sent those our way and I’ll investigate things. Hope to hear from you soon!

Hi @Alan_G - thanks for getting back to me!

I’ve just submitted a bug report, thanks for taking a look :smiley:

Thanks @21O - really appreciate you sending that our way, I was able to retrieve the logs on my end. I’ll do some further digging into this and get back in touch with you once I have more info to share :slight_smile:

+1 - experiencing the same error in our extension too.

Looks like it’s a common experience atm not just one extension but all of them :see_no_evil_monkey:

Hi folks :waving_hand: - following up here. We’re looking into this a possible issue on our end and there is some work being done to mitigate things. I’ll keep an eye on this and update you once I can confirm a fix/next steps.

@21O

Could you please update to POS version 10.13 and see if this issue persists?

Victor

Just +1ing what Victor mentioned above, this should be resolved in 10.13:

I’ll close out this thread for now, but feel free to ping us if you continue to see issues :slight_smile:

This looks to be fixed - thanks everyone!

Glad to hear it’s working @21O - thanks for confirming!