Worksheet change not recognising target cell changes

Apologies if this has been covered previously, but have been unable to find a solution.

Col A on RANGES sheet lists three different meals. Cols B - D list the ingredients of each one.

Macro should be triggered if the DropList in C6 on the CALCULATOR sheet changes.
If the User clears the cell, it should delete any ingredients listed in Col D and exit the sub.
If the User selects a meal from the C6 Droplist, Macro should delete any ingredients in Col D, find the relevant list on the RANGES sheet, and copy those ingredients back to Col D on the CALCULATOR.

For whatever reason, the Macro is not "seeing" any change to C6, so nothing happens if you change or clear it.

Option Explicit

Dim c As Long, f As Long, m As Long
Dim rng As Range
Dim ws As Worksheet

Private Sub Worksheet_Change(ByVal Target As Range)

    Set ws = Sheet1
        
'Run Macro only if C6 changes
    
    With ws
    If Target.Address = .Range("C6") Then
    .Range(.Cells(6, 4), .Cells(23, 4)).ClearContents
    
    
'Stop macro if no meal selected
    
    If .Range("C6") = "" Then
    Exit Sub
    Else
     
    Application.EnableEvents = False
     
    With Sheet2
        
'Find last col on Ranges sheet

    c = .Cells(1, .Columns.Count).End(xlToLeft).Column
    
'Find col matching Meal
        
        With .Range("1:1")
        Set rng = .Find(What:=ws.Range("C6"), After:=.Cells(.Cells.Count), LookIn:=xlValues, LookAt:=xlWhole, SearchOrder:=xlByColumns, SearchDirection:=xlNext, MatchCase:=False)
         
            If Not rng Is Nothing Then
            m = rng.Column
            End If
        End With
            
'Find last row in Meal column
    
            f = .Cells(.Rows.Count, m).End(xlUp).Row
    
'Copy ingredients to CALCULATOR
    
            .Range(.Cells(2, m), .Cells(f, m)).Copy Destination:=Sheet1.Cells(6, 4)
    
       End With
    
    End If
    
    End If
    
    End With
    
    Application.EnableEvents = True
    
                
    End Sub

All solutions, suggestions and alternatives welcome as ever

Ochimus