diff --git a/packages/core/src/store/actions/node-actions.ts b/packages/core/src/store/actions/node-actions.ts
index 5ced050b..f42c24cf 100644
--- a/packages/core/src/store/actions/node-actions.ts
+++ b/packages/core/src/store/actions/node-actions.ts
@@ -152,6 +152,10 @@ export const deleteNodesAction = (
     return { nodes: nextNodes, rootNodeIds: nextRootIds }
   })
 
-  // Notify systems that the parent has changed (e.g. Wall needs to fill a window hole)
-  parentsToMarkDirty.forEach((pId) => get().markDirty(pId))
+  
+  // Trigger a full scene re-validation after deleting node (as deleting a slab can cause widespread changes to level elevations)
+  const currentNodes = get().nodes
+  Object.values(currentNodes).forEach((node) => {
+    get().markDirty(node.id)
+  })
 }