diff --git a/src/DatabaseServices/ViewportEntity.ts b/src/DatabaseServices/ViewportEntity.ts
index d4723c853..f06bf63ac 100644
--- a/src/DatabaseServices/ViewportEntity.ts
+++ b/src/DatabaseServices/ViewportEntity.ts
@@ -172,8 +172,12 @@ export class ViewportEntity extends Entity
     get Entitys()
     {
         let ens: Entity[] = [];
-        for (let id of [...this._ShowObjectIds, ...this._HideObjectIds])
-            ens.push(id.Object as Entity);
+        for (let id of this._ShowObjectIds)
+            if (id?.Object) ens.push(id.Object as Entity);
+
+        for (let id of this._HideObjectIds)
+            if (id?.Object) ens.push(id.Object as Entity);
+
         return ens;
     }
     get Points()