Hello,
I am experiencing a critical issue on my N8N Cloud instance. All of my production webhooks are failing.
When I call any production webhook URL directly, I receive the error:
{“code”:0,“message”:“Workflow Webhook error: Workflow could not be started!”}
Because the workflow fails to start, it does not send the correct headers, which causes a CORS error when I try to call the webhook from a web form (hosted on Netlify).
This is what I have already confirmed:
The workflows are saved and active. I have tried deactivating, saving, activating, and saving again multiple times.
The issue happens even with a brand new, minimal workflow (Webhook → Respond to Webhook).
The webhook URLs are 100% correct.
The Test URL works correctly and shows “Workflow was started”, but the Production URL always fails.
This seems to be an internal platform issue with my instance, as I have exhausted all possible user-side configurations.
Could you please investigate my N8N Cloud instance to determine why my workflows are failing to start?
Thank you.
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