Describe the problem/error/question
I’m experiencing an issue where workflow execution details are missing in the n8n UI, even though the workflow appears to be running successfully and completing its tasks (e.g., data is written to the target system). This primarily occurs with workflows that process a large amount of data. I suspect this is related to memory limitations or large data volumes during execution, which might be preventing n8n from fully saving or displaying the execution logs. Since I am using n8n Cloud, I don’t have direct access to server logs or environment variables to diagnose this further.
What is the error message (if any)?
There is no explicit error message displayed in the n8n UI. The primary symptom is the absence of the execution record itself in the “Executions” tab for the workflow, or only partial/incomplete details are shown. If there were an underlying server-side “JavaScript heap out of memory” error, I wouldn’t see it directly.
Please share your workflow
My workflow JSON is too large to paste directly here (it exceeds 32,000 characters). You can find the full workflow JSON at this Google Docs link:
(Note: The workflow involves fetching data from Apify, performing AI sentiment analysis using multiple LLM nodes, processing with various Set, If, and Code nodes, and then storing data in a PostgreSQL database.)
Share the output returned by the last node
I am unable to share the output returned by the last node within the n8n UI because the execution record itself is missing or incomplete for the problematic executions. However, I can confirm that the intended external actions (e.g., data being inserted into a Supabase PostgreSQL database, or an email being sent) are occurring, which indicates the workflow is running to completion despite the missing execution logs in n8n.
Information on your n8n setup
- n8n version: 1.100.1
- Database (default: SQLite): Managed by n8n Cloud (likely PostgreSQL)
- n8n EXECUTIONS_PROCESS setting (default: own, main): Managed by n8n Cloud
- Running n8n via (Docker, npm, n8n cloud, desktop app): n8n Cloud
- Operating system: Managed by n8n Cloud (not applicable to my local machine)
