diff --git a/File_Format_Library/FileFormats/BMD/BMD.cs b/File_Format_Library/FileFormats/BMD/BMD.cs
index ace71b5f..2ed9e150 100644
--- a/File_Format_Library/FileFormats/BMD/BMD.cs
+++ b/File_Format_Library/FileFormats/BMD/BMD.cs
@@ -354,6 +354,8 @@ namespace FirstPlugin
                 var textures = new List<STGenericTexture>();
                 foreach (var mesh in Renderer.Meshes)
                     materials.Add(mesh.GetMaterial());
+                foreach (var mesh in Renderer.Meshes)
+                    mesh.MaterialIndex = materials.IndexOf(mesh.GetMaterial());
                 foreach (var tex in Renderer.TextureList)
                     textures.Add(tex);
 
diff --git a/Switch_Toolbox_Library/FileFormats/DAE/DAE.cs b/Switch_Toolbox_Library/FileFormats/DAE/DAE.cs
index 9b60098f..738cc76c 100644
--- a/Switch_Toolbox_Library/FileFormats/DAE/DAE.cs
+++ b/Switch_Toolbox_Library/FileFormats/DAE/DAE.cs
@@ -270,6 +270,7 @@ namespace Toolbox.Library
                     if (mesh.MaterialIndex != -1 && Materials.Count > mesh.MaterialIndex)
                     {
                         writer.CurrentMaterial = Materials[mesh.MaterialIndex].Text;
+                        Console.WriteLine($"MaterialIndex {mesh.MaterialIndex } {Materials[mesh.MaterialIndex].Text}");
                     }
 
 
diff --git a/Switch_Toolbox_Library/Generics/GenericPolygonGroup.cs b/Switch_Toolbox_Library/Generics/GenericPolygonGroup.cs
index 7fbd2035..d7c78f32 100644
--- a/Switch_Toolbox_Library/Generics/GenericPolygonGroup.cs
+++ b/Switch_Toolbox_Library/Generics/GenericPolygonGroup.cs
@@ -18,10 +18,10 @@ namespace Toolbox.Library
 
     public class STGenericPolygonGroup
     {
-        public virtual STGenericMaterial Material { get; set; }
+        public virtual STGenericMaterial Material { get; set; } = null;
 
         public int Offset { get; set; }
-        public int MaterialIndex { get; set; }
+        public int MaterialIndex { get; set; } = -1;
         public int Index { get; set; }
 
         public List<int> faces = new List<int>();