Nesting data not working properly

Not able to see registered Trainees under specific Course after Registration. Below is the Page created to view nested data:   List View is nested in Data View but after entering data and saving it, list does not populate inside respective data.
1 answers

Are you refreshing the TrainingEvent? If not, do that. You can do it by adding a change object action to your save/commit microflow that just refreshes the TrainingEvent without committing it or adding any changes.