Map shows very-North/South data points along top/bottom edges of map background

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" />