Hi Karin,
I just made a quick app with the scenario you were talking about in modeler 7.8, and didnt run into the same issue. What is your data source on the listview (association, microflow?)? Also how many objects are in the list you are trying to view? Maybe the list is so big that its taking some time to load, or if the data source is microflow, maybe the microflow is taking a long time?