diff --git a/examples/example_file.gh b/examples/example_file.gh
index d38f12c..90ed840 100644
Binary files a/examples/example_file.gh and b/examples/example_file.gh differ
diff --git a/src/Components/7_Process/HoleFiller.cs b/src/Components/7_Process/HoleFiller.cs
index e2a44d6..0900373 100644
--- a/src/Components/7_Process/HoleFiller.cs
+++ b/src/Components/7_Process/HoleFiller.cs
@@ -43,7 +43,7 @@ private void Menu_PanelTypeChanged(object sender, EventArgs e)
         {
             if (sender is ToolStripMenuItem item && item.Tag is "Filler")
                 Type = (HoleFillerType)Enum.Parse(typeof(HoleFillerType),item.Text);
-
+            this.ExpireSolution(true);
         }
 
         
diff --git a/src/Components/7_Process/IterativeHoleFiller.cs b/src/Components/7_Process/IterativeHoleFiller.cs
index dd409ad..fdfd7da 100644
--- a/src/Components/7_Process/IterativeHoleFiller.cs
+++ b/src/Components/7_Process/IterativeHoleFiller.cs
@@ -42,7 +42,7 @@ private void Menu_PanelTypeChanged(object sender, EventArgs e)
         {
             if (sender is ToolStripMenuItem item && item.Tag is "Filler")
                type = (HoleFillerType)Enum.Parse(typeof(HoleFillerType), item.Text);
-
+            this.ExpireSolution(true);
         }
 
         private void contextMenuStrip_Closing(object sender, EventArgs e)
@@ -116,7 +116,7 @@ protected override void SolveInstance(IGH_DataAccess DA)
 
         public override bool Write(GH_IWriter writer)
         {
-            writer.SetInt32("type", (int)type);
+            writer.SetInt32("Type", (int)type);
 
             return base.Write(writer);
         }