connection with chat gpt

Adobe for ChatGPT is installed and authenticated successfully, and Adobe tools are exposed to ChatGPT. However, every actual Adobe tool call fails before execution with:

MCP streamable transport probe failed with HTTP 403 from adobe.io

Endpoint:
https://photoshop-mcp-service.adobe.io/v3-creativity-b8f2a/mcp

Tested with Adobe Firefly image generation and Adobe initialization. The same error occurs consistently.

I have already reconnected the Adobe plugin, reauthorized the Adobe account, changed plugin settings, and tested again. The tools remain visible, but execution is blocked by the MCP transport 403.

Environment:

• ChatGPT Plus
• Adobe Firefly Pro Plus
• Personal Adobe account
• Japan

This appears to occur at the Adobe/ChatGPT MCP transport layer before the requested Adobe operation is executed.

Please investigate the authorization/transport configuration for the Adobe for ChatGPT MCP endpoint.