The symptom is shown here: 1. Very North: <img src="https://github.com/user-attachments/assets/e16a72cd-8cb9-4021-84b5-8e182d04bdf8" width="600" /> 2. Very South: <img src="https://github.com/user-attachments/assets/0ab6c22c-d3c2-42c5-a775-724a6bc777f0" width="600" />