RNHTTR opened a new issue, #41979:
URL: https://github.com/apache/airflow/issues/41979
### Apache Airflow version
2.10.0
### If "Other Airflow 2 version" selected, which one?
_No response_
### What happened?
When top-level DAG code causes a DagBag import timeout error, this will fail
silently (from a DAG author's perspective -- it will fail in the DAG processor
logs).
### What you think should happen instead?
An error banner should be shown in the Airflow UI.
### How to reproduce
```python
from datetime import datetime
from airflow.decorators import dag, task
from time import sleep
@dag(start_date=datetime(2023, 1, 1), max_active_runs=3, schedule=None,
catchup=False)
def bad_practices_dag_1():
sleep(40)
@task
def do_something():
print(f"The meaning of life, the universe, and everything is... 42.")
do_something()
bad_practices_dag_1()
```
### Operating System
n/a
### Versions of Apache Airflow Providers
_No response_
### Deployment
Astronomer
### 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)
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