badrisrinivas9 opened a new issue, #30021: URL: https://github.com/apache/airflow/issues/30021
### Apache Airflow version 2.5.1 ### What happened If we create two nested groups and expand the groups the second group tasks fail. I assume the second expand doesn't know which value of mapped index to take.  ### What you think should happen instead The second group should have got the value from the upstream from the first group(most probably by mapping value) ### How to reproduce import pendulum from airflow.decorators import dag, task, task_group from airflow.operators.empty import EmptyOperator @dag(dag_id="test", start_date=pendulum.datetime(2021, 1, 1, tz="UTC"), schedule=None, catchup=False, render_template_as_native_obj=True ) def generic_wrapper(): task1 = EmptyOperator(task_id="task1") task2 = EmptyOperator(task_id="task2") @task def task3(): return [1, 2, 3] @task_group( group_id="group2" ) def group2(i): @task def task4(i): print(i) @task def task5(): return [1, 2, 3] task4(i) >> group3.expand(x=task5()) @task_group( group_id="group3" ) def group3(x): @task def task6(x): print(x) task6(x) task1 >> task2 >> group2.expand(i=task3()) dag = generic_wrapper() if __name__ == "__main__": dag.test() ### Operating System linux ### Versions of Apache Airflow Providers airflow 2.5.1 ### Deployment Other ### Deployment details _No response_ ### Anything else _No response_ ### Are you willing to submit PR? - [ ] Yes I am willing to submit a PR! ### Code of Conduct - [X] I agree to follow this project's [Code of Conduct](https://github.com/apache/airflow/blob/main/CODE_OF_CONDUCT.md) -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: [email protected] For queries about this service, please contact Infrastructure at: [email protected]
