@Mff73 thanks for the explanation.
That’s right, in “my profile->map” section the dots are plain, and in that screen I can tap only some of the points to see my activities. So I can reproduce your bug.
@sartoric those points are the real starting points of my activity “heatmap”.
So I will file an enhancement to see also those points as “clickable” to access old activities in a quicker way ( myprofile -> map is not so intuitve as clicking on the main map icon on home screen)