When importing points (geocache), there is a double-check, but not for tracks.
I imported 500 tracks some time ago. Meanwhile, at the source, 3 have been deleted and 50 new ones added.
Now I have re-imported the 547 tracks into the folder. There was no warning so that already 497 St. were present. Now I have 497 St. double in the folder.
When I import points (geocache). Points are already there. Then comes a message: ignore, overwrite, delete
For tracks, this check does not happen.