tirkarthi commented on issue #48630:
URL: https://github.com/apache/airflow/issues/48630#issuecomment-2771514060
The Airflow 2 task instances might not have any dag version attached to
them. Following are some of the places that might need a check to ensure
`dag_version` to be not None.
```
rg -i '\.dag_version\.' airflow-core/src/airflow/api_fastapi
airflow-core/src/airflow/api_fastapi/core_api/routes/ui/grid.py
162: run_dag = tis[0].dag_version.serialized_dag.dag
airflow-core/src/airflow/api_fastapi/core_api/services/ui/grid.py
180: serdag = tis[0].dag_version.serialized_dag.dag
258: serdags = {ti.dag_version.serialized_dag for ti in task_instances}
```
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