Mostly Step 1 will do the trick, If not you have to make changes in your listView by following step 2
1) this.NavigationCacheMode = Windows.UI.Xaml.Navigation.NavigationCacheMode.Enabled;
2)
<ListView.ItemsPanel>
<ItemsPanelTemplate>
<StackPanel Orientation="Vertical"/>
</ItemsPanelTemplate>
</ListView.ItemsPanel>
I hope it helps :)