diff --git a/js_modules/dagster-ui/packages/ui-core/src/util/weakMapMemoize.ts b/js_modules/dagster-ui/packages/ui-core/src/util/weakMapMemoize.ts
index f984c3a81bbf0..1f8522098ed74 100644
--- a/js_modules/dagster-ui/packages/ui-core/src/util/weakMapMemoize.ts
+++ b/js_modules/dagster-ui/packages/ui-core/src/util/weakMapMemoize.ts
@@ -58,12 +58,6 @@ export function weakMapMemoize<T extends AnyFunction>(fn: T, options?: WeakMapMe
           } else {
             parent.map.delete(parentKey);
           }
-
-          // Remove references to help garbage collection
-          delete cacheNode.parent;
-          delete cacheNode.parentKey;
-          delete cacheNode.result;
-          delete cacheNode.lruKey;
         }
       },
       noDisposeOnSet: false, // Ensure dispose is called on eviction