Actions not executing after successful API call

[pedroalmeidadeveloper]

Can we access your project?

• I give permission for members of the FlutterFlow team to access and test my project for the sole purpose of investigating this issue.

Current Behavior

Error on navigation with an "Unhandled Promise Rejection: Error".

This error only occurs when trying to navigate to another page in the following example.

In this action chains second condition I first try with no navigation (if True) - no problem. When I add navigation at the end, this error pops up in the web inspector console and the navigate action is never executed in the app.

This navigation is triggered by the model. This functionality is essencial for AI apps and I can't move forward without it... at least without code.

UPDATE: Upon further testing I noticed that the error only occurs when using an Update Page State action somewhere in the action chain.

Expected Behavior

Ask for a service in the chat. When the service order is complete you should be redirected to a new page. The error occurs here.

Steps to Reproduce

Login:
User: teste@gmail.com
Pass: 123456

1. open the chat pressing the navBar blue center button (/container)
2. ask for a service
3. Confirm that the order description is correct
4. You should be redirected to another page (error here)

Reproducible from Blank

• The steps to reproduce above start from a blank project.

Bug Report Code (Required)

IT4ghc+A5ZJ2mOZE7a6Jae9anjkWG21+Rpc0sd4bGA0dCJzuPLMQdvXsSBNWTsThY1ZmM0SmmTgz+cGOivDPCsE4C06uGaJE1Lh+FDvhQXK5e5OBOqqoOXR6DeZbIG6a37WF3xB7PsRvZVog21OUBO69czDvQYTLIndISq/LZO4=

Visual documentation

Environment

- FlutterFlow version: v6.4.44 released November 21, 2025
- Platform: iOS, Android, Web
- Browser name and version: Safari
- Operating system and version affected: iOS 18 and 26

The error is occurring in Android, iOS and web. In the web I've tested with safari and chrome.

Additional Information

I want the LLM to be able to trigger actions by processing API Responses in the action chain which should be simple in flutterflow... this feature is critical for any AI chat APP.

The app is in Portuguese but you can ask the chat model to speak in another language.

[Juansarmi]

Hi there!

Sorry to hear you're running into this issue.

Could you let me know which platform and operating system you’re using with FlutterFlow, as well as the version you’re currently on?

If you’re able to recreate the issue in a new blank project, that would really help speed things up on our side.

Please also send me the bug report code from that new project so I can take a closer look.

Thanks in advance!

[github-actions]

This issue is stale because it has been open for 7 days with no activity. If there are no further updates, a team member will close the issue.

[Juansarmi]

Closing this issue since we haven't heard back from you. If you are still facing the problem please submit a new issue. Thank you!