diff --git a/src/SourceGenerators/Uno.UI.SourceGenerators/XamlGenerator/XamlFileParser.cs b/src/SourceGenerators/Uno.UI.SourceGenerators/XamlGenerator/XamlFileParser.cs
index 3d20b7b49005..e418d91e1aef 100644
--- a/src/SourceGenerators/Uno.UI.SourceGenerators/XamlGenerator/XamlFileParser.cs
+++ b/src/SourceGenerators/Uno.UI.SourceGenerators/XamlGenerator/XamlFileParser.cs
@@ -469,10 +469,18 @@ private XamlMemberDefinition VisitMember(XamlXmlReader reader, XamlObjectDefinit
 			return member;
 		}
 
-		private bool IsLiteralInlineText(object value, XamlMemberDefinition member, XamlObjectDefinition xamlObject)
+		private static bool IsLiteralInlineText(object value, XamlMemberDefinition member, XamlObjectDefinition xamlObject)
 		{
 			return value is string
-				&& (xamlObject.Type.Name == "TextBlock" || xamlObject.Type.Name == "Span")
+				&& (
+					xamlObject.Type.Name is "TextBlock"
+						or "Bold"
+						or "Hyperlink"
+						or "Italic"
+						or "Underline"
+						or "Span"
+						or "Paragraph"
+				)
 				&& (member.Member.Name == "_UnknownContent" || member.Member.Name == "Inlines");
 		}
 
diff --git a/src/Uno.UI.Tests/Windows_UI_Xaml_Markup/XamlReaderTests/Given_XamlReader.cs b/src/Uno.UI.Tests/Windows_UI_Xaml_Markup/XamlReaderTests/Given_XamlReader.cs
index fba4b6e3d73a..293740d81560 100644
--- a/src/Uno.UI.Tests/Windows_UI_Xaml_Markup/XamlReaderTests/Given_XamlReader.cs
+++ b/src/Uno.UI.Tests/Windows_UI_Xaml_Markup/XamlReaderTests/Given_XamlReader.cs
@@ -1254,6 +1254,31 @@ public void When_StaticResource_In_ResourceDictionary()
 			Assert.AreEqual(b2.Color, c2);
 		}
 
+		[TestMethod]
+		public void When_Run_In_Inlines_Span()
+		{
+			When_Run_In_Inlines_Helper("Span", p => ((Span)p).Inlines);
+		}
+
+		[TestMethod]
+		public void When_Run_In_Inlines_Paragraph()
+		{
+			When_Run_In_Inlines_Helper("Paragraph", p => ((Paragraph)p).Inlines);
+		}
+
+		private void When_Run_In_Inlines_Helper(string rootName, Func<object, InlineCollection> getInlines)
+		{
+			var root = Windows.UI.Xaml.Markup.XamlReader.Load($@"<{rootName} xml:space=""preserve"" xmlns=""http://schemas.microsoft.com/winfx/2006/xaml/presentation"">regular text<Bold>bold text</Bold><Underline>underline text</Underline><Italic>italic text</Italic><Hyperlink Name=""name"">this is a hyperlink</Hyperlink>more regular text</{rootName}>");
+			var inlines = getInlines(root).ToArray();
+			Assert.AreEqual(6, inlines.Length);
+			Assert.AreEqual("regular text", ((Run)inlines[0]).Text);
+			Assert.AreEqual("bold text", ((Run)((Bold)inlines[1]).Inlines.Single()).Text);
+			Assert.AreEqual("underline text", ((Run)((Underline)inlines[2]).Inlines.Single()).Text);
+			Assert.AreEqual("italic text", ((Run)((Italic)inlines[3]).Inlines.Single()).Text);
+			Assert.AreEqual("this is a hyperlink", ((Run)((Hyperlink)inlines[4]).Inlines.Single()).Text);
+			Assert.AreEqual("more regular text", ((Run)inlines[5]).Text);
+		}
+
 		/// <summary>
 		/// XamlReader.Load the xaml and type-check result.
 		/// </summary>
diff --git a/src/Uno.UI/UI/Xaml/Documents/InlineCollection.cs b/src/Uno.UI/UI/Xaml/Documents/InlineCollection.cs
index a697c238ce39..391f0387fb04 100644
--- a/src/Uno.UI/UI/Xaml/Documents/InlineCollection.cs
+++ b/src/Uno.UI/UI/Xaml/Documents/InlineCollection.cs
@@ -49,7 +49,7 @@ private void OnCollectionChanged()
 		public bool Contains(Inline item) => _collection.Contains(item);
 
 		/// <inheritdoc />
-		public void CopyTo(Inline[] array, int arrayIndex) => throw new NotSupportedException();
+		public void CopyTo(Inline[] array, int arrayIndex) => _collection.CopyTo(array, arrayIndex);
 
 		/// <inheritdoc />
 		public bool Remove(Inline item) => _collection.Remove(item);
diff --git a/src/Uno.UI/UI/Xaml/Markup/Reader/XamlStringParser.cs b/src/Uno.UI/UI/Xaml/Markup/Reader/XamlStringParser.cs
index 8780532268fa..74d598e45ead 100644
--- a/src/Uno.UI/UI/Xaml/Markup/Reader/XamlStringParser.cs
+++ b/src/Uno.UI/UI/Xaml/Markup/Reader/XamlStringParser.cs
@@ -170,15 +170,17 @@ private XamlMemberDefinition VisitMember(XamlXmlReader reader, XamlObjectDefinit
 			return member;
 		}
 
-		private bool IsLiteralInlineText(object value, XamlMemberDefinition member, XamlObjectDefinition xamlObject)
+		private static bool IsLiteralInlineText(object value, XamlMemberDefinition member, XamlObjectDefinition xamlObject)
 		{
 			return value is string
 				&& (
-					xamlObject.Type.Name == nameof(Controls.TextBlock)
-					|| xamlObject.Type.Name == nameof(Documents.Bold)
-					|| xamlObject.Type.Name == nameof(Documents.Hyperlink)
-					|| xamlObject.Type.Name == nameof(Documents.Italic)
-					|| xamlObject.Type.Name == nameof(Documents.Underline)
+					xamlObject.Type.Name is nameof(Controls.TextBlock)
+						or nameof(Documents.Bold)
+						or nameof(Documents.Hyperlink)
+						or nameof(Documents.Italic)
+						or nameof(Documents.Underline)
+						or nameof(Documents.Span)
+						or nameof(Documents.Paragraph)
 				)
 				&& (member.Member.Name == "_UnknownContent" || member.Member.Name == "Inlines");
 		}