diff --git a/Assets/CoursePrefabs/Control_Room.prefab b/Assets/CoursePrefabs/Control_Room.prefab
index 3e1144bd..4e20737a 100644
--- a/Assets/CoursePrefabs/Control_Room.prefab
+++ b/Assets/CoursePrefabs/Control_Room.prefab
@@ -50,7 +50,7 @@ MeshRenderer:
   m_PrefabInstance: {fileID: 0}
   m_PrefabAsset: {fileID: 0}
   m_GameObject: {fileID: 782634506160621956}
-  m_Enabled: 1
+  m_Enabled: 0
   m_CastShadows: 1
   m_ReceiveShadows: 1
   m_DynamicOccludee: 1
diff --git a/Assets/CoursePrefabs/Green_Room.prefab b/Assets/CoursePrefabs/Green_Room.prefab
index 1e1917d2..d5d4cdb1 100644
--- a/Assets/CoursePrefabs/Green_Room.prefab
+++ b/Assets/CoursePrefabs/Green_Room.prefab
@@ -138,7 +138,7 @@ MeshRenderer:
   m_PrefabInstance: {fileID: 0}
   m_PrefabAsset: {fileID: 0}
   m_GameObject: {fileID: 4908809923922535070}
-  m_Enabled: 1
+  m_Enabled: 0
   m_CastShadows: 1
   m_ReceiveShadows: 1
   m_DynamicOccludee: 1
diff --git a/Assets/CoursePrefabs/Main_Room.prefab b/Assets/CoursePrefabs/Main_Room.prefab
index 2d621aa3..1cdb5589 100644
--- a/Assets/CoursePrefabs/Main_Room.prefab
+++ b/Assets/CoursePrefabs/Main_Room.prefab
@@ -50,7 +50,7 @@ MeshRenderer:
   m_PrefabInstance: {fileID: 0}
   m_PrefabAsset: {fileID: 0}
   m_GameObject: {fileID: 2529697415610420776}
-  m_Enabled: 1
+  m_Enabled: 0
   m_CastShadows: 1
   m_ReceiveShadows: 1
   m_DynamicOccludee: 1
diff --git a/Assets/Samples/MAVRIC.GEEKCup/QRCode/Prefabs/course-01.prefab b/Assets/Samples/MAVRIC.GEEKCup/QRCode/Prefabs/course-01.prefab
index 2ee7791b..fe536486 100644
--- a/Assets/Samples/MAVRIC.GEEKCup/QRCode/Prefabs/course-01.prefab
+++ b/Assets/Samples/MAVRIC.GEEKCup/QRCode/Prefabs/course-01.prefab
@@ -251,11 +251,6 @@ PrefabInstance:
       propertyPath: m_LocalEulerAnglesHint.z
       value: -90
       objectReference: {fileID: 0}
-    - target: {fileID: 6770967778482584083, guid: 7fadbf24dc7c14173a60e008099ea15f,
-        type: 3}
-      propertyPath: m_Enabled
-      value: 0
-      objectReference: {fileID: 0}
     m_RemovedComponents: []
     m_RemovedGameObjects: []
     m_AddedGameObjects: []
diff --git a/Assets/Samples/MAVRIC.GEEKCup/QRCode/Prefabs/course-02.prefab b/Assets/Samples/MAVRIC.GEEKCup/QRCode/Prefabs/course-02.prefab
index cd301afa..755c32d6 100644
--- a/Assets/Samples/MAVRIC.GEEKCup/QRCode/Prefabs/course-02.prefab
+++ b/Assets/Samples/MAVRIC.GEEKCup/QRCode/Prefabs/course-02.prefab
@@ -211,16 +211,6 @@ PrefabInstance:
       propertyPath: m_Enabled
       value: 0
       objectReference: {fileID: 0}
-    - target: {fileID: 6864179191514092418, guid: 23df27f8eab164f53a62e09b8b7c7325,
-        type: 3}
-      propertyPath: m_Enabled
-      value: 0
-      objectReference: {fileID: 0}
-    - target: {fileID: 6864179191514092418, guid: 23df27f8eab164f53a62e09b8b7c7325,
-        type: 3}
-      propertyPath: m_Enabled
-      value: 1
-      objectReference: {fileID: 0}
     - target: {fileID: 8622549130173790273, guid: 23df27f8eab164f53a62e09b8b7c7325,
         type: 3}
       propertyPath: m_LocalPosition.x