422 Error when upload file in Chat Trigger node

[ostapiv2005]

Hi, an error occurred when switching to the new version of n8n for uploading PDF files with enabled streaming mode.
Situation
Recently updated to the new version of n8n.
I used the Chat Trigger node to upload files and summarize information through the AI ​​agent.
I saw that in the new versions was added a streaming response. I changed the nodes and enabled streaming in both the Chat Trigger node and the AI ​​agent node.
In the chat window, when uploading a PDF document, I get error 422

{
    "code": 422,
    "message": "Failed to parse request body",
    "hint": "No number after minus sign in JSON at position 1 (line 1 column 2)"
}

Information on your n8n setup

• n8n version: 1.106.3
• Database (default: SQLite):
• n8n EXECUTIONS_PROCESS setting (default: own, main):
• Running n8n via (Docker, npm, n8n cloud, desktop app): Docker
• Operating system: Linux

[cutecatcode]

Hello @ostapiv2005, would you mind to share your workflow here?
You can use this guide for embedding your workflow
https://community.n8n.io/uploads/default/original/3X/3/c/3c5d4799d109b446df8875d731db2800e7c55bc6.gif

[ostapiv2005]

Thanks for the answer.

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[ostapiv2005]

If I turn off streaming mode - everything works fine.
If I turn it on, I get error 422 right away, still on the client side as far as I understand, because the request doesn’t even reach the n8n workflow.

[ostapiv2005]

Hi, @cutecatcode
Can you give some advice considering my workflow posted above?
Thanks