[GitHub] [airflow] talnagar opened a new issue, #29105: graph disappears when using branch_task and a dynamic classic operator

[via GitHub]

talnagar opened a new issue, #29105:
URL: https://github.com/apache/airflow/issues/29105

   ### Apache Airflow version
   
   2.5.1
   
   ### What happened
   
   when using a dynamically generated task after a branch_task the graph 
doesn't render. tried with BashOperator and a KubernetesPodOperator. 
   
   the developer console in the browser shows the error:
   `Uncaught TypeError: Cannot read properties of undefined (reading 'length')
       at z (graph.1c0596dfced26c638bfe.js:2:17499)
       at graph.1c0596dfced26c638bfe.js:2:17654
       at Array.map (<anonymous>)
       at z (graph.1c0596dfced26c638bfe.js:2:17646)
       at graph.1c0596dfced26c638bfe.js:2:26602
       at graph.1c0596dfced26c638bfe.js:2:26655
       at graph.1c0596dfced26c638bfe.js:2:26661
       at graph.1c0596dfced26c638bfe.js:2:222
       at graph.1c0596dfced26c638bfe.js:2:227
   z @ graph.1c0596dfced26c638bfe.js:2
   (anonymous) @ graph.1c0596dfced26c638bfe.js:2
   z @ graph.1c0596dfced26c638bfe.js:2
   (anonymous) @ graph.1c0596dfced26c638bfe.js:2
   (anonymous) @ graph.1c0596dfced26c638bfe.js:2
   (anonymous) @ graph.1c0596dfced26c638bfe.js:2
   (anonymous) @ graph.1c0596dfced26c638bfe.js:2
   (anonymous) @ graph.1c0596dfced26c638bfe.js:2
   `
   
   grid view renders fine. 
   
   ### What you think should happen instead
   
   graph should be rendered. 
   
   ### How to reproduce
   
   `@dag('branch_dynamic', schedule_interval=None, default_args=default_args, 
catchup=False)
   def branch_dynamic_flow():
       @branch_task
       def choose_path():
           return 'b'
   
       @task
       def a():
           print('a')
   
       b = BashOperator.partial(task_id="b").expand(bash_command=["echo 1", 
"echo 2"])
   
       path = choose_path()
       path >> a()
       path >> b
   
   
   dag = branch_dynamic_flow()
   `
   
   ### Operating System
   
   red hat
   
   ### Versions of Apache Airflow Providers
   
   apache-airflow-providers-cncf-kubernetes | 5.1.1 | Kubernetes
   
   
   ### Deployment
   
   Official Apache Airflow Helm Chart
   
   ### Deployment details
   
   _No response_
   
   ### Anything else
   
   _No response_
   
   ### Are you willing to submit PR?
   
   - [X] 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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