Map card doesn't show mobility

How to have the mobility in the map card?

I have this code:

                    title: Map
                    card:
                      type: map
                      default_zoom: 15                    
                      entities:
                        - device_tracker.life360_maurizio_fabiani
                      hours_to_show: 48 

But it doesn’t show the mobility in the last 48 hours…
Where am i wrong?