Update the skeleton on transform

scene/3d/skeleton.cpp

@@ -152,6 +152,9 @@ void Skeleton::_notification(int p_what) {
 		} break;
 		case NOTIFICATION_EXIT_WORLD: {
 
+		} break;
+		case NOTIFICATION_TRANSFORM_CHANGED: {
+			_make_dirty();
 		} break;
 		case NOTIFICATION_UPDATE_SKELETON: {