diff --git a/Source/Editor/Surface/Archetypes/Material.cs b/Source/Editor/Surface/Archetypes/Material.cs
index 991f7e9d9..4b0e3d71e 100644
--- a/Source/Editor/Surface/Archetypes/Material.cs
+++ b/Source/Editor/Surface/Archetypes/Material.cs
@@ -25,79 +25,20 @@ namespace FlaxEditor.Surface.Archetypes
             /// </summary>
             internal enum MaterialNodeBoxes
             {
-                /// <summary>
-                /// The layer input.
-                /// </summary>
                 Layer = 0,
-
-                /// <summary>
-                /// The color input.
-                /// </summary>
                 Color = 1,
-
-                /// <summary>
-                /// The mask input.
-                /// </summary>
                 Mask = 2,
-
-                /// <summary>
-                /// The emissive input.
-                /// </summary>
                 Emissive = 3,
-
-                /// <summary>
-                /// The metalness input.
-                /// </summary>
                 Metalness = 4,
-
-                /// <summary>
-                /// The specular input.
-                /// </summary>
                 Specular = 5,
-
-                /// <summary>
-                /// The roughness input.
-                /// </summary>
                 Roughness = 6,
-
-                /// <summary>
-                /// The ambient occlusion input.
-                /// </summary>
                 AmbientOcclusion = 7,
-
-                /// <summary>
-                /// The normal input.
-                /// </summary>
                 Normal = 8,
-
-                /// <summary>
-                /// The opacity input.
-                /// </summary>
                 Opacity = 9,
-
-                /// <summary>
-                /// The refraction input.
-                /// </summary>
                 Refraction = 10,
-
-                /// <summary>
-                /// The position offset input.
-                /// </summary>
                 PositionOffset = 11,
-
-                /// <summary>
-                /// The tessellation multiplier input.
-                /// </summary>
                 TessellationMultiplier = 12,
-
-                /// <summary>
-                /// The world displacement input.
-                /// </summary>
                 WorldDisplacement = 13,
-
-                /// <summary>
-                /// The subsurface color input.
-                /// </summary>
                 SubsurfaceColor = 14,
             };
 
@@ -159,7 +100,6 @@ namespace FlaxEditor.Surface.Archetypes
                 case MaterialDomain.Deformable:
                 {
                     bool isNotUnlit = info.ShadingModel != MaterialShadingModel.Unlit;
-                    bool isTransparent = info.BlendMode == MaterialBlendMode.Transparent;
                     bool withTess = info.TessellationMode != TessellationMethod.None;
 
                     GetBox(MaterialNodeBoxes.Color).Enabled = isNotUnlit;
@@ -171,7 +111,7 @@ namespace FlaxEditor.Surface.Archetypes
                     GetBox(MaterialNodeBoxes.AmbientOcclusion).Enabled = isNotUnlit;
                     GetBox(MaterialNodeBoxes.Normal).Enabled = isNotUnlit;
                     GetBox(MaterialNodeBoxes.Opacity).Enabled = info.ShadingModel == MaterialShadingModel.Subsurface || info.ShadingModel == MaterialShadingModel.Foliage || info.BlendMode != MaterialBlendMode.Opaque;
-                    GetBox(MaterialNodeBoxes.Refraction).Enabled = isTransparent;
+                    GetBox(MaterialNodeBoxes.Refraction).Enabled = info.BlendMode != MaterialBlendMode.Opaque;
                     GetBox(MaterialNodeBoxes.PositionOffset).Enabled = true;
                     GetBox(MaterialNodeBoxes.TessellationMultiplier).Enabled = withTess;
                     GetBox(MaterialNodeBoxes.WorldDisplacement).Enabled = withTess;
diff --git a/Source/Engine/Level/Actors/AnimatedModel.cpp b/Source/Engine/Level/Actors/AnimatedModel.cpp
index 2a1bbf9f5..0d6c8cd22 100644
--- a/Source/Engine/Level/Actors/AnimatedModel.cpp
+++ b/Source/Engine/Level/Actors/AnimatedModel.cpp
@@ -422,12 +422,19 @@ void AnimatedModel::UpdateLocalBounds()
         //box = SkinnedModel->GetBox(GraphInstance.RootTransform.GetWorld());
         //box = SkinnedModel->GetBox();
 
-        // Per-bone bounds estimated from positions
-        auto& skeleton = SkinnedModel->Skeleton;
-        const int32 bonesCount = skeleton.Bones.Count();
-        box = BoundingBox(GraphInstance.NodesPose[skeleton.Bones[0].NodeIndex].GetTranslation());
-        for (int32 boneIndex = 1; boneIndex < bonesCount; boneIndex++)
-            box.Merge(GraphInstance.NodesPose[skeleton.Bones[boneIndex].NodeIndex].GetTranslation());
+        if (GraphInstance.NodesPose.Count() != 0)
+        {
+            // Per-bone bounds estimated from positions
+            auto& skeleton = SkinnedModel->Skeleton;
+            const int32 bonesCount = skeleton.Bones.Count();
+            box = BoundingBox(GraphInstance.NodesPose[skeleton.Bones[0].NodeIndex].GetTranslation());
+            for (int32 boneIndex = 1; boneIndex < bonesCount; boneIndex++)
+                box.Merge(GraphInstance.NodesPose[skeleton.Bones[boneIndex].NodeIndex].GetTranslation());
+        }
+        else
+        {
+            box = SkinnedModel->GetBox();
+        }
 
         // Apply margin based on model dimensions
         const Vector3 modelBoxSize = SkinnedModel->GetBox().GetSize();