Deleting item from name manager working intermittently

Sub Macro1()
'
' Macro1 Macro
'



ActiveWorkbook.Names("Item_Types").Delete





'
End Sub

ONLY works if the "Item_Types" named range was already in there when the workbook opened.

I have a script that creates a named range with that name, but needs to delete it later (not the data in the named range, just the reference to it).

For whatever reason, it fails to delete the named range I created giving me this error:

"application defined or object defined error"


PLEASE NOTE, I am NOT trying to delete the data REFERENCED by the named range, I am trying to delete the reference TO the named range. I.e. the end result of this formula should change NOTHING on the workbook, but should simply remove the "Item_Types" line from the name manager.


This script shows how to delete a name:

Sub DeleteBadRefs()
  Dim nm As Name
  
  For Each nm In ActiveWorkbook.Names
    If Instr(1, nm.RefersTo, "#REF!")>0 Then
      'List the name before deleting
      Debug.Print nm.Name & ": deleted"
      nm.Delete
    End If
  Next nm
End Sub

But it deletes it based on what it references. I want to delete it based on what the name is.