GitHub user Neon-Face added a comment to the discussion: [Bug]
`standard.operators.python` fails the task randomly
Here is more information:
```
[2025-08-13T13:42:21.050+0000] {scheduler_job_runner.py:451} INFO - 1 tasks up
for execution:
<TaskInstance: Insights_Market_Concentration.upsert_datasette
manual__2025-08-13T13:41:05.454607+00:00 [scheduled]>
[2025-08-13T13:42:21.050+0000] {scheduler_job_runner.py:523} INFO - DAG
Insights_Market_Concentration has 0/32 running and queued tasks
[2025-08-13T13:42:21.051+0000] {scheduler_job_runner.py:662} INFO - Setting the
following tasks to queued state:
<TaskInstance: Insights_Market_Concentration.upsert_datasette
manual__2025-08-13T13:41:05.454607+00:00 [scheduled]>
[2025-08-13T13:42:21.051+0000] {scheduler_job_runner.py:768} INFO - **Trying to
enqueue tasks**: [<TaskInstance: Insights_Market_Concentration.upse
rt_datasette manual__2025-08-13T13:41:05.454607+00:00 [scheduled]>] for
executor: LocalExecutor(parallelism=64)
2025-08-13 13:42:21 [info ] **Secrets backends loaded for worker
[supervisor] backend_classes=['EnvironmentVariablesBackend'] count=1**
[2025-08-13T13:42:21.097+0000] {_client.py:1026} INFO - HTTP Request: PATCH
http://localhost:8080/execution/task-instances/0198a3aa-9aca-7d4c-b
1c2-f060389bb89d/run "HTTP/1.1 409 Conflict"
2025-08-13 13:42:21 [warning ] Server error
[airflow.sdk.api.client] detail={'detail': {'reason': 'invalid_state', 'message'
: **'TI was not in a state where it could be marked as running',
'previous_state': 'scheduled'}}**
2025-08-13 13:42:21 [info ] Process exited [supervisor]
exit_code=<Negsignal.SIGKILL: -9> pid=1931241 signal_sent=SIGKILL
[2025-08-13T13:42:21.132+0000] {local_executor.py:96} ERROR - uhoh
```
So i guess task instance jumped from `scheduled` to `running` for some reason(?)
GitHub link:
https://github.com/apache/airflow/discussions/54534#discussioncomment-14113666
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