bpy.ops.bim.override_object_delete()
bpy.context.space_data.system_bookmarks_active = 3
Python: Traceback (most recent call last):
  File "C:\Users\nigel\AppData\Roaming\Blender Foundation\Blender\4.1\scripts\addons\blenderbim\libs\site\packages\ifcopenshell\util\schema.py", line 250, in migrate_class
    new_element = new_file.create_entity(element.is_a())
                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "C:\Users\nigel\AppData\Roaming\Blender Foundation\Blender\4.1\scripts\addons\blenderbim\libs\site\packages\ifcopenshell\file.py", line 326, in create_entity
    e = entity_instance((self.schema_identifier, type), self)
        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "C:\Users\nigel\AppData\Roaming\Blender Foundation\Blender\4.1\scripts\addons\blenderbim\libs\site\packages\ifcopenshell\entity_instance.py", line 150, in __init__
    e = ifcopenshell_wrapper.new_IfcBaseClass(*e)
        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "C:\Users\nigel\AppData\Roaming\Blender Foundation\Blender\4.1\scripts\addons\blenderbim\libs\site\packages\ifcopenshell\ifcopenshell_wrapper.py", line 6191, in new_IfcBaseClass
    return _ifcopenshell_wrapper.new_IfcBaseClass(schema_identifier, name)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
RuntimeError: Entity with name 'IfcCalendarDate' not found in schema 'IFC4'

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "C:\Users\nigel\AppData\Roaming\Blender Foundation\Blender\4.1\scripts\addons\blenderbim\libs\site\packages\ifcopenshell\util\schema.py", line 257, in migrate_class
    new_element = new_file.create_entity(self.class_2x3_to_4[element.is_a()])
                                         ~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^
KeyError: 'IfcCalendarDate'