API Authorization Failed for Agent Bot Token in Self-Hosted v4.4.0

[rabel153]

Hello,
I'm having a persistent authorization issue with the API on my self-hosted Chatwoot instance (v4.4.0). I'm trying to send a message back to a conversation using an Agent Bot token from an external application (n8n), but I always receive an authorization error.
Here is what I have confirmed:
I have created an Agent Bot in Settings -> Agent Bots.
I have copied the bot's Access Token.
I have successfully assigned the bot as an Agent to the correct Inbox.
My API calls are being sent to the correct endpoint: https://asistente.rabelmatos.com/api/v1/accounts/1/conversations/{id}/messages
The authentication method I am using is an HTTP Header with the name api_access_token and the value of the bot's token.
Despite this, every POST request to create a message fails with an Authorization failed error (or a generic 401/404 depending on the exact path).
I have confirmed my n8n workflow is working correctly, and the issue is specifically with the Chatwoot API rejecting the bot's token.
Is there any additional server-side configuration, environment variable, or known issue in version 4.4.0 that could prevent Agent Bot tokens from being validated correctly?
Thank you for your help.

[scaferus]

I have the same Problem now.

[scaferus]

Is here any Solution?
We cant use Chatwoot with N8N anymore.

[Izyakin]

Have a same problem

[Izyakin]

-H "api_access_token: bot_token"

and it works