diff --git a/apps/ai-game-creator-shell/src/view/ui-editor/components/preview/PreviewWorkspace.tsx b/apps/ai-game-creator-shell/src/view/ui-editor/components/preview/PreviewWorkspace.tsx
index f7d528b3e..7a5228442 100644
--- a/apps/ai-game-creator-shell/src/view/ui-editor/components/preview/PreviewWorkspace.tsx
+++ b/apps/ai-game-creator-shell/src/view/ui-editor/components/preview/PreviewWorkspace.tsx
@@ -62,6 +62,8 @@ export function PreviewWorkspace({
   const updatePreviewTransform = useCallback(
     (nodeId: NodeId, transform: Node['layout']['transform'] | null) => {
       setPreviewTransforms((current) => {
+        if (!transform && !current.has(nodeId)) return current;
+        if (transform && current.get(nodeId) === transform) return current;
         const next = new Map(current);
         if (transform) next.set(nodeId, transform);
         else next.delete(nodeId);