i have a VBA code to show/hide rows depending on the value of a cell, the
values can either be selected from the list or typed in, my problem is when
the user selects the value from the list nothing happens, the code only
executes when typing and pressing enter.

Here's the code:

Private Sub Worksheet_Change(ByVal target As Range)
Application.ScreenUpdating = False
'Conditions & Ranges'
Dim rng As Range, rng2 As Range, rng3 As Range
Dim wf As WorksheetFunction
Dim cond1 As Boolean, cond2 As Boolean, cond3 As Boolean, cond4 As Boolean

Set wf = Application.WorksheetFunction
Set rng = Me.Range("OU1") 'Option 1'
Set rng2 = Me.Range("OU2") 'Option 2'
Set rng3 = Me.Range("OU3") 'Option 3'
cond1 = (UCase(rng3.Value) = "YES")
cond2 = (UCase(rng3.Value) = "NO")
cond3 = (UCase(rng2.Value) = "YES")
cond4 = (UCase(rng2.Value) = "NO")

'Hides Packing Prices'
[38:38, 47:47].EntireRow.Hidden = wf.And(cond2, cond4)
[37:37, 46:46].EntireRow.Hidden = wf.Or(wf.And(cond1, cond3),
wf.And(cond2, cond4))

'Hides depending on Type'
[9:9].EntireRow.Hidden = (rng3.Value = "YES")
[10:21, 35:35, 44:44].EntireRow.Hidden = (rng3.Value = "NO")
'Hides Option 2'
If Not Intersect(rng, target) Is Nothing Then
[36:36, 45:45].EntireRow.Hidden = IsEmpty(rng.Value)
End If
Application.ScreenUpdating = True
End Sub