[GitHub] [airflow] JCoder01 opened a new issue #13044: Task Group: Node order changes after collapse

[GitBox]

JCoder01 opened a new issue #13044:
URL: https://github.com/apache/airflow/issues/13044


   **Apache Airflow version**: 2.0.0rc1
   
   
   **Kubernetes version (if you are using kubernetes)** (use `kubectl version`):
   
   **Environment**:
   
   - **Cloud provider or hardware configuration**:
   - **OS** (e.g. from /etc/os-release):
   - **Kernel** (e.g. `uname -a`):
   - **Install tools**:
   - **Others**:
   
   **What happened**:
   
   The order of the nodes changes when expanding and collapsing task groups:
   Before:
   
![image](https://user-images.githubusercontent.com/651639/102012250-44a2e380-3d17-11eb-936a-c62dfa9c6e6b.png)
   
   After expanding task group and collapsing:
   
![image](https://user-images.githubusercontent.com/651639/102012285-82077100-3d17-11eb-9da7-c94c98a9a0cb.png)
   
   
   **What you expected to happen**:
   node order to be consistent
   **How to reproduce it**:
   
   Create a DAG with multiple task groups.
   expand the top group
   collapse the top group
   observe is is now at the end.
   
   **Anything else we need to know**:
   
   happens every time.
   


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