diff --git a/Editor/ReactiveObjects/ObjectTogglePreview.cs b/Editor/ReactiveObjects/ObjectTogglePreview.cs
index 4612a0be..45b4e9fa 100644
--- a/Editor/ReactiveObjects/ObjectTogglePreview.cs
+++ b/Editor/ReactiveObjects/ObjectTogglePreview.cs
@@ -42,6 +42,9 @@ namespace nadena.dev.modular_avatar.core.editor
 
             foreach (var renderer in renderers)
             {
+                // For now, the preview system only supports MeshRenderer and SkinnedMeshRenderer
+                if (renderer is not MeshRenderer and not SkinnedMeshRenderer) continue;
+
                 bool currentlyEnabled = context.ActiveInHierarchy(renderer.gameObject);
 
                 bool overrideEnabled = true;
diff --git a/Editor/ScaleAdjuster/ScaleAdjusterPreview.cs b/Editor/ScaleAdjuster/ScaleAdjusterPreview.cs
index 644845f6..58ebfd90 100644
--- a/Editor/ScaleAdjuster/ScaleAdjusterPreview.cs
+++ b/Editor/ScaleAdjuster/ScaleAdjusterPreview.cs
@@ -75,7 +75,13 @@ namespace nadena.dev.modular_avatar.core.editor
                     renderers = new HashSet<Renderer>(new ObjectIdentityComparer<Renderer>());
                     avatarToRenderer.Add(root, renderers);
 
-                    foreach (var renderer in root.GetComponentsInChildren<Renderer>()) renderers.Add(renderer);
+                    foreach (var renderer in root.GetComponentsInChildren<Renderer>())
+                    {
+                        // For now, the preview system only supports MeshRenderer and SkinnedMeshRenderer
+                        if (renderer is not MeshRenderer and not SkinnedMeshRenderer) continue;
+
+                        renderers.Add(renderer);
+                    }
                 }
             }