I have a WPF application using the Runtime SDK that is suffering from a major memory leak. My app is designed to automatically pan & zoom around the map, use the tileloading event to get the URL for an ArcGIS Server map tile, and download it using a standard .NET WebClient through a proxy server. However, even when I disable all my logic and manually pan & zoom the map control I still see a memory leak. Is this a known issue with the Runtime SDK for WPF? Another project where I work uses the Runtime SDK and they are also experiencing a memory leak when panning & zooming, just not as fast as they are not automating it.