Same workflow executing twice at the same time

Questions
1

Describe the issue/error/question

The same workflow is executing at the same time. The cron is set for 18 min a part.

What is the error message (if any)?

Screenshot_84
Screenshot_841532×622 58.1 KB

Please share the workflow

Share the output returned by the last node

Information on your n8n setup

  • n8n version:
    0.151.0
  • Database you’re using (default: SQLite):
    postgresql
  • Running n8n with the execution process [own(default), main]:
  • Running n8n via [Docker, npm, n8n.cloud, desktop app]:
    npm
2

In this case, the Interval-Node would be better. If you tell a Cron-Node to execute all 18 minutes it will execute at the following minutes of the hour:
0, 18, 36, 54
Meaning between the first and the last interval there will only be 6 minutes.