diff --git a/multi_user/bl_types/bl_scene.py b/multi_user/bl_types/bl_scene.py
index 08a3d69..aef762a 100644
--- a/multi_user/bl_types/bl_scene.py
+++ b/multi_user/bl_types/bl_scene.py
@@ -368,6 +368,8 @@ def load_sequence(sequence_data: dict, sequence_editor: bpy.types.SequenceEditor
 
 
 class BlScene(BlDatablock):
+    is_root = True
+
     bl_id = "scenes"
     bl_class = bpy.types.Scene
     bl_check_common = True
diff --git a/multi_user/timers.py b/multi_user/timers.py
index 4b99b68..22e6a64 100644
--- a/multi_user/timers.py
+++ b/multi_user/timers.py
@@ -123,7 +123,9 @@ class ApplyTimer(Timer):
                         if node_ref.bl_reload_parent:
                             for parent in session.repository.get_parents(node):
                                 logging.debug("Refresh parent {node}")
-                                apply(session.repository, parent, force=True)
+                                apply(session.repository,
+                                      parent.uuid,
+                                      force=True)
 
 
 class DynamicRightSelectTimer(Timer):