strange map behavior

840 non-solar, FW 21.18

I noticed that the position pointer on the map rather sticks on the navigation course then showing the actual location.

In the picture: left street and navigation course, right bike lane and my actual path/location 

This goes so far that when I leave the course in a wrong direction the 'pionter' stays on the course at the nearest point to the actual location and just the small blue line gets updated (and a unlogical straight blue line is displayed between actual location and pointer)