Repost: AI Agents return null when inside of Action Blocks #5814

[dominikmucklow]

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• 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

#5814

This is a confirmed bug, only reposting because no further action has been taken in 1 month.

An AI Agent that has been formatted to return JSON will only work as a normal action, but not within an Action Block. It will return 'null' inside of the Action Block.

Expected Behavior

The AI Agent should return a non-null response even if it is nested inside of an Action Block.

Steps to Reproduce

1. Create an AI Agent with a JSON output
2. Place Agent inside of an Action Block with correct input parameters
3. When the Action Block is triggered, the output will be null

Reproducible from Blank

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

Bug Report Code (Required)

IT4kysmB34ZgocdG1s/Lbe0xgj07C1ggTLJEoetxc0gbfe/4EZkMY8mkVxNpTdyzaH52HlaInk0C083GjeH1KPkVHziCc755wqV6ZhPPbFu5MI+YCc+8end5GtxXC0fG0cGJkQolNrZtZV0uw2C6GuiXEj+Cf9qOYwx5e6fDbOY=

Visual documentation

Screen.Recording.2025-05-13.at.12.09.51.mov

Environment

- FlutterFlow version: v5.4.9
- Platform: Web
- Browser name and version: Chrome 135.0.7049.95
- Operating system and version affected: macOS Sonoma

Additional Information

This occurs regardless of whether in Test Mode or deployed as a Web app.
It occurs on any Google Gemini model (OpenAI was not tested).

[Alezanello]

Hello!

Thank you for your patience. The other issue is still open, and our team is actively working on it. We understand it can be frustrating when something isn't yet live in production, and we truly appreciate your understanding.

Rest assured, the issue will be marked as closed once the fix is completed and deployed to production.