ChatGPT Apps SDK widget becomes blank after the second question

ChatGPT Apps SDK
1

Hi everyone,

I’m seeing a consistent widget-rendering issue with any ChatGPT app.

Steps to Reproduce

  1. Start a new conversation and ask a question that invokes the app.
  2. The MCP tool completes and the widget renders correctly.
  3. Ask a follow-up question that invokes the tool again

Actual behavior:

During the second tool call, ChatGPT displays:

image
image1710×324 5.91 KB

After that:

  • The widget does not appear.
  • ChatGPT does not provide a text reply.
  • The response remains stuck in this state.

Expected Behavior

The second tool call should complete normally, display the updated widget, and return the assistant’s reply.

Has anyone experienced this recently? It looks similar to cases where the tool call succeeds, but the widget output is not delivered or rendered correctly inside the ChatGPT iframe.

Update

This issue only occurs when users add the tool using the official methods, such as clicking the “+” button or using @ to add the tool. The issue can be bypassed by typing the connector name directly.

In the second request:

@MyApp Show me my todo list → fail
MyApp Show me my todo list → success

2

@OpenAI_Support we are facing same issue

3

Hi @CY-Anson, @prashantkaushik11.pk,

Sorry for the delayed response, and thanks for reporting this issue and sharing the detailed reproduction steps.

I understand that the widget renders correctly on the first tool invocation but becomes stuck on subsequent requests when the app is attached using the “+” button or @ mention.

We identified a similar issue that has since been fixed.

If you're still experiencing this behavior on ChatGPT Web, please contact support@openai.com from your OpenAI-registered email address with a sanitized HAR file captured while reproducing the issue, along with relevant screenshots or a screen recording, your operating system details, and the browser version you're using. This will help us investigate further.

Thanks again for bringing this to our attention.

—AJ