diff --git a/CHANGES b/CHANGES
index 503008b3..35796686 100644
--- a/CHANGES
+++ b/CHANGES
@@ -9,7 +9,7 @@
 - Bug fixing and stability improvements
 
 **Runtime**
-- [BREAK CHANGE] New `MainItemComponent#uniqueId` management, change from integer to a non persistent random string
+- [BREAK CHANGE] New `MainItemComponent#uniqueId` management, change from integer to a random string
 - Chained Entities and Spine' SkeletonRenderSeparator
 - Improved PhysicsActions. Add `PhysicsActions#transformTo` and `PhysicsActions#transformBy`
 - Fixed physic's step
diff --git a/hyperlap2d-runtime-libgdx b/hyperlap2d-runtime-libgdx
index fd7c320e..398b6633 160000
--- a/hyperlap2d-runtime-libgdx
+++ b/hyperlap2d-runtime-libgdx
@@ -1 +1 @@
-Subproject commit fd7c320ee038c6cb45e4a562538a6111e073d669
+Subproject commit 398b6633dc6d11af840deab181bbf1f0b3e1ac5c
diff --git a/src/main/java/games/rednblack/editor/controller/commands/AddToLibraryCommand.java b/src/main/java/games/rednblack/editor/controller/commands/AddToLibraryCommand.java
index 6e2594b9..397de929 100644
--- a/src/main/java/games/rednblack/editor/controller/commands/AddToLibraryCommand.java
+++ b/src/main/java/games/rednblack/editor/controller/commands/AddToLibraryCommand.java
@@ -59,6 +59,7 @@ public class AddToLibraryCommand extends HistoricRevertibleCommand {
 
             CompositeItemVO newVO = new CompositeItemVO();
             newVO.loadFromEntity(item, sandbox.getEngine(), sandbox.sceneControl.sceneLoader.getEntityFactory());
+            newVO.cleanIds();
             libraryItems.put(createdLibraryItemName, newVO);
 
             //mark this entity as belonging to library
diff --git a/src/main/java/games/rednblack/editor/controller/commands/EntityModifyRevertibleCommand.java b/src/main/java/games/rednblack/editor/controller/commands/EntityModifyRevertibleCommand.java
index c9d4761b..ded58d92 100644
--- a/src/main/java/games/rednblack/editor/controller/commands/EntityModifyRevertibleCommand.java
+++ b/src/main/java/games/rednblack/editor/controller/commands/EntityModifyRevertibleCommand.java
@@ -60,6 +60,7 @@ public abstract class EntityModifyRevertibleCommand extends HistoricRevertibleCo
             if (libraryItems.containsKey(mainItemComponent.libraryLink)) {
                 CompositeItemVO itemVO = new CompositeItemVO();
                 itemVO.loadFromEntity(entity, sandbox.getEngine(), sandbox.sceneControl.sceneLoader.getEntityFactory());
+                itemVO.cleanIds();
                 libraryItems.put(mainItemComponent.libraryLink, itemVO);
             }
 
diff --git a/src/main/java/games/rednblack/editor/controller/commands/PasteItemsCommand.java b/src/main/java/games/rednblack/editor/controller/commands/PasteItemsCommand.java
index 2f61a31d..1670328d 100644
--- a/src/main/java/games/rednblack/editor/controller/commands/PasteItemsCommand.java
+++ b/src/main/java/games/rednblack/editor/controller/commands/PasteItemsCommand.java
@@ -63,6 +63,7 @@ public class PasteItemsCommand extends EntityModifyRevertibleCommand {
 
         Json json = HyperJson.getJson();
         CompositeItemVO compositeVO = json.fromJson(CompositeItemVO.class, (String) payload[1]);
+        compositeVO.cleanIds();
 
         Set<Integer> newEntitiesList = createEntitiesFromVO(compositeVO);
         sandbox.getEngine().process();
diff --git a/src/main/java/games/rednblack/editor/factory/ItemFactory.java b/src/main/java/games/rednblack/editor/factory/ItemFactory.java
index e3adc4c1..bf3060d8 100644
--- a/src/main/java/games/rednblack/editor/factory/ItemFactory.java
+++ b/src/main/java/games/rednblack/editor/factory/ItemFactory.java
@@ -173,6 +173,7 @@ public class ItemFactory implements IFactory {
         HashMap<String, CompositeItemVO> libraryItems = projectManager.currentProjectInfoVO.libraryItems;
 
         CompositeItemVO itemVO = libraryItems.get(libraryName);
+        itemVO.cleanIds();
         createdEntity = createCompositeItem(itemVO, position);
 
         if (createdEntity == -1) return false;