gemini-3-pro-preview : permanent error "Model call failed: {"message":"invalid request body","code":"invalid_request_body"} (Request ID: 5BB8:204F31:213B66C:27B31B1:.......)"

gemini-3-pro-preview : permanent error "Model call failed: {"message":"invalid request body","code":"invalid_request_body"} (Request ID: 5BB8:204F31:213B66C:27B31B1:.......)" #711