GitHub user Fabhi added a comment to the discussion: Dag to do backfills of 
other dags

I tried implementing a "backfiller" dag to do this, and many a times it would 
trigger one dagrun out of the 10 requested ones but with the type as 
"scheduled" rather than "backfill" and blocks itself from running all other 
runs with the error " Backfill cannot be created for DagRun 
scheduled__2025-10-20T02:00:00+00:00 in 2025-10-20T02:00:00, as there's already 
scheduled in a RUNNING state"

Did you guys also encounter this issue? @bhulsey @match-gabeflores 

GitHub link: 
https://github.com/apache/airflow/discussions/28390#discussioncomment-14763195

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