Excluding areas from routing

Red181

Hello guys,

currently I am working on a navigation app using the QT Location API and the osm plugin. The app allows routing between two given coordinates. Additionally, certain areas can be excluded from the routing by using the addExcludedArea method of the RouteQuery type. Adding those areas works just fine, which I have checked by calling the excludedAreas property (a list of all saved areas). My problem here is, that those excluded areas are not considered when the route is calculated. In all my tests the calculated route leads right through the excluded area. So far I tried everything possible to find the reason for this and I am slowly considering that the method is not working properly.
The geo rectangle which represents the excluded area is also defined correctly.
I am using the following function to obtain the route:

    function routeDownload()
    {
        if (startCoordinate.isValid && endCoordinate.isValid){
        //clearing previous data
        routeQuery.clearExcludedAreas()
        routeQuery.clearWaypoints()

        //adding the excluded area
        routeQuery.addExcludedArea(region)
        console.debug(routeQuery.excludedAreas)

        //adding start and end coordinate
        routeQuery.addWaypoint(startCoordinate)
        routeQuery.addWaypoint(endCoordinate)

        //additional routing settings
        routeQuery.travelModes = RouteQuery.CarTravel
        routeQuery.routeOptimizations = RouteQuery.FastestRoute

        routeModel.update();
        }
    }

I am very thankfull for every possible advice you could give me. This problem is keeping me busy for some time now.
Also, can anyone confirm that the addExcludedArea method is actually working?