tatiana commented on issue #49891:
URL: https://github.com/apache/airflow/issues/49891#issuecomment-3425172225

   By the time I faced this issue, I paired with @dstandish on trying to 
understand the root cause.
   
   We investigated the `logs/dag_processor/` correspondent to the DAGs that 
were failing and found `SIGSEGV`, as detailed 
[here](https://github.com/astronomer/astronomer-cosmos/issues/1754#issuecomment-2872408920).
   
   To be able to effectively do the local development of DAGs locally in a 
MacOS and sucessfully run `airflow standalone`, I set the following in my 
bashprofile (`.zshrc`):
   
   ```
   unset https_proxy     
   unset all_proxy
   unset no_proxy
   unset http_proxy
   
   export no_proxy='*'
   export PYTHONFAULTHANDLER=true
   export AIRFLOW__CORE__LOAD_EXAMPLES=False
   export OBJC_DISABLE_INITIALIZE_FORK_SAFETY=YES   
   ```
   
   This has helped me avoiding lots of signal terminations that are happening 
when using Airflow 3 in MacOS and were not being exposed in the `airflow 
standalone` stdout nor in the `airflow dags list-import-errors`.


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