How to enable the timing gates autolap?

I made a new course with the new time gate option. On garmin connect i see the purple km marks and have enabled the switch. I ran the course but i didn’t get any km lap 

The activity is here https://connect.garmin.com/modern/activity/20745717184

The course is here https://connect.garmin.com/modern/course/413115741

i choose run > navigation > do course  > Tijdpoort test (which is the name of the course) and start. 

any settings i forgot? 

firmware 12.72