diff --git a/src/blenderbim/blenderbim/bim/data/chaching.mp3 b/src/blenderbim/blenderbim/bim/data/chaching.mp3
new file mode 100644
index 0000000000..2d6b6cb724
Binary files /dev/null and b/src/blenderbim/blenderbim/bim/data/chaching.mp3 differ
diff --git a/src/blenderbim/blenderbim/bim/handler.py b/src/blenderbim/blenderbim/bim/handler.py
index bc3f805109..9de63c1916 100644
--- a/src/blenderbim/blenderbim/bim/handler.py
+++ b/src/blenderbim/blenderbim/bim/handler.py
@@ -6,6 +6,7 @@ import ifcopenshell.api.owner.settings
 from bpy.app.handlers import persistent
 from blenderbim.bim.ifc import IfcStore
 from ifcopenshell.api.attribute.data import Data as AttributeData
+from ifcopenshell.api.type.data import Data as TypeData
 
 
 def mode_callback(obj, data):
@@ -33,6 +34,8 @@ def name_callback(obj, data):
     if element.is_a("IfcSpatialStructureElement") or (hasattr(element, "IsDecomposedBy") and element.IsDecomposedBy):
         collection = obj.users_collection[0]
         collection.name = obj.name
+    if element.is_a("IfcTypeProduct"):
+        TypeData.purge()
     element.Name = "/".join(obj.name.split("/")[1:])
     AttributeData.load(IfcStore.get_file(), obj.BIMObjectProperties.ifc_definition_id)
 
diff --git a/src/blenderbim/blenderbim/bim/module/cost/operator.py b/src/blenderbim/blenderbim/bim/module/cost/operator.py
index 6c3c96660f..0d0ae85c55 100644
--- a/src/blenderbim/blenderbim/bim/module/cost/operator.py
+++ b/src/blenderbim/blenderbim/bim/module/cost/operator.py
@@ -106,6 +106,7 @@ class EnableEditingCostItems(bpy.types.Operator):
                 import aud
 
                 device = aud.Device()
+                # chaching.mp3 is by Lucish_ CC-BY-3.0 https://freesound.org/people/Lucish_/sounds/554841/
                 sound = aud.Sound(os.path.join(context.scene.BIMProperties.data_dir, "chaching.mp3"))
                 handle = device.play(sound)
                 sound_buffered = aud.Sound.buffer(sound)