Issue Description:
When there are two or more saved GPS tracks that partially overlap, using the "Show track" function causes a corrupted display. Specifically, the first track appears correctly, while the second is only roughly sketched with straight lines at turn points, preventing proper visualization and comparison of GPS tracks. The issue also occurs when setting tracks to "Always show." If there is an overlap between tracks, one of them will always display as if it has very few points, resulting in contiguous straight lines that distort the original route.
Steps to Reproduce:
- Save two or more GPS tracks that partially overlap.
- Use the "Show track" function to display both tracks.
- Observe the visualization: the first track appears correctly, while the second appears as an approximation with straight lines.
Impact of the bug: The incomplete visualization of the second track makes it impossible to accurately compare overlapping GPS tracks.
Blue - correct visualization Black - distorted visualization
