Kicked out of an event

Yesterday, I started for the first on a event.

But after 15 min I recieved the message 'return to group". How can I see that what is the begin and the end of the group?

Welcome to Zwift @Dimitri_Steels

The fence is the front of the group ride, you should not cross the line. The perfect place to be is with the ride leader.

Thanks! Can we see the red and yellow dots in the screen?

Yes you will see them on a group ride.