Workflow execution returning empty

Questions
1

I’m seeing an issue with sub-workflow executions in n8n.

  • The main workflow execution is filled with data.

  • I’m calling a sub-workflow using the When executed by another Workflow node*.*

  • Most of the time it works fine and the sub-workflow returns data as expected.

  • But in about 1% of ~200 runs, the sub-workflow execution is empty.

What I expected:

  • The sub-workflow to consistently receive input and return processed data back.

What actually happens:

  • Main workflow shows all the input data, always, also in the cases of “empty” errors in the sub-workflow.

  • Sub-workflow runs, but the execution log for those failing runs is empty.

Information on your n8n setup

  • n8n version: running version [email protected]
  • Database (default: SQLite): Supabase
  • Running n8n via (Docker, npm, n8n cloud, desktop app): n8n cloud
  • Operating system: Mac OS
2

Hello! Do you have any video o picture?

3

you can put a node “wait” by 5 sec, just for test. Sometimes a node run before other

4

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