XL 2019 Besoin d'aide "Protection de page" bloque le fonctionnement Ucase

Private Sub Worksheet_Change(ByVal Target As Range)

     Dim cl     As Range
     If Not Target Is Nothing Then
          Application.EnableEvents = False
          Application.Calculation = xlCalculationManual
          Application.ScreenUpdating = False
          For Each cl In Target.Cells
               cl.Value = UCase(cl.Value)
          Next
          Application.Calculation = xlCalculationAutomatic
          Application.EnableEvents = True
          Application.ScreenUpdating = True
     End If
    
End Sub