UWP exception in release mode only

Question

I'm trying to load XmlReader to System.ServiceModel.Syndication.SyndicationFeed and it cause an exception only in release mode but work in debug mode

the loading code

using (var xmlReader = XmlReader.Create(new StringReader(stringXML), new XmlReaderSettings { Async = true, IgnoreWhitespace = true, IgnoreComments = true }))
{
    System.ServiceModel.Syndication.SyndicationFeed feed = System.ServiceModel.Syndication.SyndicationFeed.Load(xmlReader);
}

the exception

System.Reflection.MissingRuntimeArtifactException: ‘Cannot retrieve a MethodInfo for this delegate because the method it targeted (System.ServiceModel.Syndication.SyndicationFeedFormatter.DefaultUriParser(XmlUriData, Uri&)) was not enabled for metadata using the Dynamic attribute. For more information, please visit https://go.microsoft.com/fwlink/?LinkID=616868’

and the xml content https://mspoweruser.com/feed

Answer 1

adding this code to the Default.rd.xml file fixes the problem

<Library Name="SyndicationFeed">
  <Assembly Name="System.ServiceModel.Syndication" Activate="Required All" Browse="Required All" Serialize="Required All" Dynamic="Required All" />
  <Namespace Name="System.ServiceModel.Syndication" Dynamic="Required All" />
</Library>

after </Application> and before </Directives>