diff --git a/csharp/Platform.Collections/Trees/Node.cs b/csharp/Platform.Collections/Trees/Node.cs
index 51eba40d..3570b552 100644
--- a/csharp/Platform.Collections/Trees/Node.cs
+++ b/csharp/Platform.Collections/Trees/Node.cs
@@ -262,7 +262,7 @@ public Node SetChildValue(object value, params object[] keys)
             var node = this;
             for (var i = 0; i < keys.Length; i++)
             {
-                node = SetChildValue(value, keys[i]);
+                node = node[keys[i]];
             }
             node.Value = value;
             return node;
diff --git a/experiments/TestCurrentBehavior.cs b/experiments/TestCurrentBehavior.cs
new file mode 100644
index 00000000..79a9f242
--- /dev/null
+++ b/experiments/TestCurrentBehavior.cs
@@ -0,0 +1,38 @@
+using System;
+using Platform.Collections.Trees;
+
+namespace Experiments
+{
+    class Program
+    {
+        static void Main(string[] args)
+        {
+            Console.WriteLine("Testing current SetChildValue behavior...");
+            
+            var root = new Node();
+            
+            // Test setting value with multiple keys
+            root.SetChildValue("FinalValue", "key1", "key2", "key3");
+            
+            // Check values at each level
+            Console.WriteLine($"Root value: {root.Value}");
+            Console.WriteLine($"Level 1 (key1) value: {root.GetChildValue("key1")}");
+            Console.WriteLine($"Level 2 (key1->key2) value: {root.GetChildValue("key1", "key2")}");
+            Console.WriteLine($"Level 3 (key1->key2->key3) value: {root.GetChildValue("key1", "key2", "key3")}");
+            
+            Console.WriteLine();
+            Console.WriteLine("What we EXPECT:");
+            Console.WriteLine("Root value: null");
+            Console.WriteLine("Level 1 (key1) value: null");
+            Console.WriteLine("Level 2 (key1->key2) value: null");
+            Console.WriteLine("Level 3 (key1->key2->key3) value: FinalValue");
+            
+            Console.WriteLine();
+            Console.WriteLine("What we ACTUALLY GET:");
+            Console.WriteLine("Root value: " + (root.Value ?? "null"));
+            Console.WriteLine("Level 1 (key1) value: " + (root.GetChildValue("key1") ?? "null"));
+            Console.WriteLine("Level 2 (key1->key2) value: " + (root.GetChildValue("key1", "key2") ?? "null"));
+            Console.WriteLine("Level 3 (key1->key2->key3) value: " + (root.GetChildValue("key1", "key2", "key3") ?? "null"));
+        }
+    }
+}
\ No newline at end of file
diff --git a/experiments/TestCurrentBehavior.csproj b/experiments/TestCurrentBehavior.csproj
new file mode 100644
index 00000000..989fa3a2
--- /dev/null
+++ b/experiments/TestCurrentBehavior.csproj
@@ -0,0 +1,14 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <OutputType>Exe</OutputType>
+    <TargetFramework>net8</TargetFramework>
+    <LangVersion>latest</LangVersion>
+    <Nullable>enable</Nullable>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <ProjectReference Include="..\csharp\Platform.Collections\Platform.Collections.csproj" />
+  </ItemGroup>
+
+</Project>
\ No newline at end of file
diff --git a/experiments/TestFixedBehavior.cs b/experiments/TestFixedBehavior.cs
new file mode 100644
index 00000000..38c55399
--- /dev/null
+++ b/experiments/TestFixedBehavior.cs
@@ -0,0 +1,43 @@
+using System;
+using Platform.Collections.Trees;
+
+namespace Experiments
+{
+    class FixedBehaviorTest
+    {
+        static void Main(string[] args)
+        {
+            Console.WriteLine("Testing FIXED SetChildValue behavior...");
+            
+            var root = new Node();
+            
+            // Test setting value with multiple keys
+            root.SetChildValue("FinalValue", "key1", "key2", "key3");
+            
+            // Check values at each level
+            Console.WriteLine($"Root value: {root.Value ?? "null"}");
+            Console.WriteLine($"Level 1 (key1) value: {root.GetChildValue("key1") ?? "null"}");
+            Console.WriteLine($"Level 2 (key1->key2) value: {root.GetChildValue("key1", "key2") ?? "null"}");
+            Console.WriteLine($"Level 3 (key1->key2->key3) value: {root.GetChildValue("key1", "key2", "key3") ?? "null"}");
+            
+            Console.WriteLine();
+            Console.WriteLine("EXPECTED vs ACTUAL:");
+            Console.WriteLine($"Root value: null -> {root.Value ?? "null"} {(root.Value == null ? "✓" : "✗")}");
+            Console.WriteLine($"Level 1 (key1) value: null -> {root.GetChildValue("key1") ?? "null"} {(root.GetChildValue("key1") == null ? "✓" : "✗")}");
+            Console.WriteLine($"Level 2 (key1->key2) value: null -> {root.GetChildValue("key1", "key2") ?? "null"} {(root.GetChildValue("key1", "key2") == null ? "✓" : "✗")}");
+            Console.WriteLine($"Level 3 (key1->key2->key3) value: FinalValue -> {root.GetChildValue("key1", "key2", "key3") ?? "null"} {(root.GetChildValue("key1", "key2", "key3")?.ToString() == "FinalValue" ? "✓" : "✗")}");
+            
+            Console.WriteLine();
+            Console.WriteLine("Additional test - setting different values at different paths:");
+            root.SetChildValue("Value1", "a");
+            root.SetChildValue("Value2", "a", "b");
+            root.SetChildValue("Value3", "x", "y", "z");
+            
+            Console.WriteLine($"Path 'a' value: {root.GetChildValue("a") ?? "null"} (expected: Value1)");
+            Console.WriteLine($"Path 'a' -> 'b' value: {root.GetChildValue("a", "b") ?? "null"} (expected: Value2)");
+            Console.WriteLine($"Path 'x' -> 'y' -> 'z' value: {root.GetChildValue("x", "y", "z") ?? "null"} (expected: Value3)");
+            Console.WriteLine($"Path 'x' value: {root.GetChildValue("x") ?? "null"} (expected: null)");
+            Console.WriteLine($"Path 'x' -> 'y' value: {root.GetChildValue("x", "y") ?? "null"} (expected: null)");
+        }
+    }
+}
\ No newline at end of file
diff --git a/experiments/TestFixedBehavior.csproj b/experiments/TestFixedBehavior.csproj
new file mode 100644
index 00000000..989fa3a2
--- /dev/null
+++ b/experiments/TestFixedBehavior.csproj
@@ -0,0 +1,14 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <OutputType>Exe</OutputType>
+    <TargetFramework>net8</TargetFramework>
+    <LangVersion>latest</LangVersion>
+    <Nullable>enable</Nullable>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <ProjectReference Include="..\csharp\Platform.Collections\Platform.Collections.csproj" />
+  </ItemGroup>
+
+</Project>
\ No newline at end of file
diff --git a/test_fixed/TestFixedBehavior.cs b/test_fixed/TestFixedBehavior.cs
new file mode 100644
index 00000000..38c55399
--- /dev/null
+++ b/test_fixed/TestFixedBehavior.cs
@@ -0,0 +1,43 @@
+using System;
+using Platform.Collections.Trees;
+
+namespace Experiments
+{
+    class FixedBehaviorTest
+    {
+        static void Main(string[] args)
+        {
+            Console.WriteLine("Testing FIXED SetChildValue behavior...");
+            
+            var root = new Node();
+            
+            // Test setting value with multiple keys
+            root.SetChildValue("FinalValue", "key1", "key2", "key3");
+            
+            // Check values at each level
+            Console.WriteLine($"Root value: {root.Value ?? "null"}");
+            Console.WriteLine($"Level 1 (key1) value: {root.GetChildValue("key1") ?? "null"}");
+            Console.WriteLine($"Level 2 (key1->key2) value: {root.GetChildValue("key1", "key2") ?? "null"}");
+            Console.WriteLine($"Level 3 (key1->key2->key3) value: {root.GetChildValue("key1", "key2", "key3") ?? "null"}");
+            
+            Console.WriteLine();
+            Console.WriteLine("EXPECTED vs ACTUAL:");
+            Console.WriteLine($"Root value: null -> {root.Value ?? "null"} {(root.Value == null ? "✓" : "✗")}");
+            Console.WriteLine($"Level 1 (key1) value: null -> {root.GetChildValue("key1") ?? "null"} {(root.GetChildValue("key1") == null ? "✓" : "✗")}");
+            Console.WriteLine($"Level 2 (key1->key2) value: null -> {root.GetChildValue("key1", "key2") ?? "null"} {(root.GetChildValue("key1", "key2") == null ? "✓" : "✗")}");
+            Console.WriteLine($"Level 3 (key1->key2->key3) value: FinalValue -> {root.GetChildValue("key1", "key2", "key3") ?? "null"} {(root.GetChildValue("key1", "key2", "key3")?.ToString() == "FinalValue" ? "✓" : "✗")}");
+            
+            Console.WriteLine();
+            Console.WriteLine("Additional test - setting different values at different paths:");
+            root.SetChildValue("Value1", "a");
+            root.SetChildValue("Value2", "a", "b");
+            root.SetChildValue("Value3", "x", "y", "z");
+            
+            Console.WriteLine($"Path 'a' value: {root.GetChildValue("a") ?? "null"} (expected: Value1)");
+            Console.WriteLine($"Path 'a' -> 'b' value: {root.GetChildValue("a", "b") ?? "null"} (expected: Value2)");
+            Console.WriteLine($"Path 'x' -> 'y' -> 'z' value: {root.GetChildValue("x", "y", "z") ?? "null"} (expected: Value3)");
+            Console.WriteLine($"Path 'x' value: {root.GetChildValue("x") ?? "null"} (expected: null)");
+            Console.WriteLine($"Path 'x' -> 'y' value: {root.GetChildValue("x", "y") ?? "null"} (expected: null)");
+        }
+    }
+}
\ No newline at end of file
diff --git a/test_fixed/TestFixedBehavior.csproj b/test_fixed/TestFixedBehavior.csproj
new file mode 100644
index 00000000..989fa3a2
--- /dev/null
+++ b/test_fixed/TestFixedBehavior.csproj
@@ -0,0 +1,14 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <OutputType>Exe</OutputType>
+    <TargetFramework>net8</TargetFramework>
+    <LangVersion>latest</LangVersion>
+    <Nullable>enable</Nullable>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <ProjectReference Include="..\csharp\Platform.Collections\Platform.Collections.csproj" />
+  </ItemGroup>
+
+</Project>
\ No newline at end of file