Index: Core/Components/src/Core.Components.GraphSharp.Forms/Extensions/TextBlockExtensions.cs
===================================================================
diff -u -rfcc528ff894c3ef3521a3d4ec8adcda05ea5b54e -rd6eb10d38e208551d7416e5036433acecee846de
--- Core/Components/src/Core.Components.GraphSharp.Forms/Extensions/TextBlockExtensions.cs	(.../TextBlockExtensions.cs)	(revision fcc528ff894c3ef3521a3d4ec8adcda05ea5b54e)
+++ Core/Components/src/Core.Components.GraphSharp.Forms/Extensions/TextBlockExtensions.cs	(.../TextBlockExtensions.cs)	(revision d6eb10d38e208551d7416e5036433acecee846de)
@@ -69,7 +69,10 @@
         /// <returns>An <see cref="Inline"/> element.</returns>
         private static Inline Convert(string value)
         {
-            var doc = new XmlDocument();
+            var doc = new XmlDocument
+            {
+                XmlResolver = null
+            };
             doc.LoadXml(value);
 
             var span = new Span();