fix placement

apps/editor/components/tools/item/use-placement-coordinator.tsx

@@ -503,12 +503,14 @@ export function usePlacementCoordinator(config: PlacementCoordinatorConfig): Rea
       if (!asset.attachTo) {
         const levelId = useViewer.getState().selection.levelId
         if (levelId) {
-          mesh.position.y = spatialGridManager.getSlabElevationForItem(
+          const slabElevation = spatialGridManager.getSlabElevationForItem(
             levelId,
             [gridPosition.current.x, gridPosition.current.y, gridPosition.current.z],
             asset.dimensions ?? DEFAULT_DIMENSIONS,
             draftNode.current.rotation,
           )
+          mesh.position.y = slabElevation
+          cursorRef.current.position.y = slabElevation
         }
       }
     }

packages/core/src/store/actions/node-actions.ts

@@ -97,9 +97,15 @@ export const updateNodesAction = (
     return { nodes: nextNodes }
   })
 
-  // Mark dirty
+  // Mark dirty after the next frame to ensure React renders complete
-  updates.forEach((u) => get().markDirty(u.id))
+  requestAnimationFrame(() => {
-  parentsToUpdate.forEach((pId) => get().markDirty(pId))
+    updates.forEach((u) => {
+      get().markDirty(u.id)
+    })
+    parentsToUpdate.forEach((pId) => {
+      get().markDirty(pId)
+    })
+  })
 }
 
 export const deleteNodesAction = (