ephraimbuddy commented on issue #48719:
URL: https://github.com/apache/airflow/issues/48719#issuecomment-3427143560
So, I was able to reproduce this differently by changing the task name
during a run on a local bundle and the behaviour is normal.
To reproduce, run this dag in a breeze env:
```python
from airflow.sdk import DAG
from airflow.providers.standard.operators.bash import BashOperator
with DAG(
dag_id="bug",
is_paused_upon_creation=False,
schedule="@once",
):
BashOperator(task_id="bash", bash_command="sleep 600")
```
Once it starts running, change the task_id to "bash1". You will get the
following warnings and error messages:
**Scheduler:**
```
2025-10-21T14:43:53.623499Z [error ] Failed to get task for ti
<TaskInstance: bug.bash scheduled__2025-10-21T14:43:18.495718+00:00 [running]>.
Marking it as removed. [airflow.models.dagrun.DagRun] loc=dagrun.py:1329
```
<img width="494" height="72" alt="Image"
src="https://github.com/user-attachments/assets/8890d112-e3bc-4f97-b527-2d48ad7d3c90";
/>
**API Server:**
```
2025-10-21T14:43:54.556323Z [warning ] Task not in running state
[airflow.api_fastapi.execution_api.routes.task_instances] current_state=removed
loc=task_instances.py:645 ti_id=019a0739-7a05-705d-8752-f6084a212b27
```
<img width="626" height="60" alt="Image"
src="https://github.com/user-attachments/assets/ae7d8cce-76b2-496c-9b90-8bf5f077f30e";
/>
**Worker:**
```
2025-10-21T14:43:54.561390Z [error ] Server indicated the task shouldn't
be running anymore [supervisor] detail={'detail': {'reason': 'not_running',
'message': 'TI is no longer in the running state and task should terminate',
'current_state': 'removed'}} loc=supervisor.py:1113 status_code=409
ti_id=UUID('019a0739-7a05-705d-8752-f6084a212b27')
2025-10-21T14:43:54.582946Z [info ] Process exited
[supervisor] exit_code=0 loc=supervisor.py:712 pid=277 signal_sent=SIGTERM
```
<img width="505" height="223" alt="Image"
src="https://github.com/user-attachments/assets/c8da13ac-032e-48d5-9eaa-ecaf691ea79d";
/>
While the behavior above is expected when a task is removed, it appears to
occur in other situations as well. If you’ve encountered this, please search
the components and share any related error or warning messages you find.
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