Schedule shows exercise groups for a lecture several times

Why does the exercise for a lecture appear several times in my schedule?

If you see all the exercise groups, the assignment to the groups has not yet been made. This happens with courses where you have to set preferences for the exercise groups.

As soon as the assignment has been made, you will only see one exercise group in the schedule.

You can see whether your status is still “pending” for this exercise group under “Courses” -> “My current registration status” under “Pending registrations”. .