Google Maps causing problem when showing in a list?

Hi guys,

When I after login directly show a list view with a google maps in it, it will keeps loading (the dotts). If I check a single object on a other page with just that object in dataview i see the maps. When I after this try to open the listview now all gets loaded.

So the problem is that it not directly loads the widget and keep loading (no logging), but when opened a single opject and seen a map, the list is shown and the maps are visible.....what do I wrong? (tried also without security and keeps same)

In the console I found this error:

mxui.js?636075918328289005:29 mendix.sys.Data.get: error in error handler for xpath //Barge.LocalJsonObject[not(Afgerond)] : mxuiwidgetDataView1.applyContext: Error: GoogleMapswidgetGoogleMaps1.applyContext: Error: GoogleMapswidgetGoogleMaps_1.applyContext: TypeError: google.maps.LatLng is not a constructor (webcore.datasource.XPathSource)(anonymous function) @ mxui.js?636075918328289005:29