n8n webhook serves an old version after publishing: fixes
n8n webhooks still serve an old version after publishing? Check long trigger node IDs, inspect publication errors, and verify the deployed response.
Topic
n8n
n8n automation platform
n8n Postgres SSH tunnel hangs: diagnosis and workarounds
n8n Postgres queries hang after an SSH tunnel closes? Check shared pools, bound workflow runtime, and learn why statement_timeout cannot stop this hang.
Fix n8n Anthropic tools failing with "No prompt specified"
n8n Anthropic tools fail with No prompt specified after earlier calls work? Inspect thinking replay arguments and test with Thinking Mode disabled.
Fix n8n "Task execution timed out after 300 seconds" Code node freeze
Attaching memory to your LLM deadlocks the task runner on AI Agent sub-node types. Feed Code nodes through the main data path and the freeze clears.
Fix the n8n Google Ads node 400 "invalid argument" error
Google retired Ads API v21 and n8n's node kept calling it. The exact 400 payload, the v25 field gotcha, and both fix paths in one guide.
n8n AI Agent Nodes Break After Google's Gemini Interactions API Migration: How to Fix It
Why n8n's Gemini and LangChain AI Agent nodes stopped returning usable responses, and the Code-node workaround while the official fix is still pending.
Fix n8n Chat UI output_text Error on Message Two
Fix the n8n Chat UI error that appears on the second message with a self-hosted LLM.
How to fix n8n HTTP Request Bearer auth 401 with pagination
n8n's HTTP Request node silently swaps a working Bearer token for the literal string "hidden" once pagination is enabled, causing every paginated request to fail with 401. Here's the exact workaround.
How to Fix n8n AI Agent Tool Calls Not Saved in the Memory Node
n8n's AI Agent never writes the tool_calls array to Memory, so the model imitates a fake history and stops calling tools. Here are the two fixes that work today.
How to set up Entra Service Principal auth for n8n Microsoft nodes
Run n8n's Microsoft nodes unattended: the full Entra app registration and Service Principal credential setup for n8n 2.30, plus the node behaviour change to plan for.