• Failing Workflow: Webhook -> HTTP Request (POST)

• Observed Error: The execution fails immediately with the following messages in the UI (seen repeatedly in the execution history):

  • Error: Cannot read properties of undefined (reading 'execute')

  • Problem executing workflow. Error: Cannot read properties of undefined (reading 'execute')

Troubleshooting Steps Taken (What I've Done)

I have performed extensive troubleshooting, including steps typically recommended by the n8n community for this specific error:

1. n8n Update: I updated the n8n version on Railway to the latest version to ensure all known bugs are patched.

2. Workflow Rebuild: The failing workflow has been manually rebuilt from a blank canvas 4 times, and I have deactivated/re-activated it numerous times to rule out workflow corruption.

3. Network Test (Passed): I confirmed that the n8n process on the Railway service can successfully make outgoing HTTP requests by running an isolated GET test to https://jsonplaceholder.typicode.com/posts/1. This test executes immediately and returns data, proving the network/firewall is NOT blocking simple outgoing traffic.

4. Configuration Check: The failing HTTP Request node has a configuration (headers, body, URL) that is identical to the configuration used in four other working n8n workflows that target the same external API.

Request for Assistance

Given that the error points to a deep, internal execution issue (reading 'execute'), and it persists after multiple full rebuilds and updates, I suspect a problem with how the n8n process is interacting with the Railway environment's storage or execution context for this specific workflow ID.

1. Is there any known interaction or caching issue between n8n's workflow storage and the Railway persistent volume that could be causing a deep internal corruption to persist even after a rebuild?

2. Could this error be related to a resource limit that is being hit just as the workflow attempts to spin up the execution context? (I am seeing no obvious OOM errors in my logs, but would appreciate a check.)

Any insight you can provide into this persistent internal error within the Railway context would be greatly appreciated.

Thank you.