MAC VBA Code workbook close only works when breakpoints are set - fails when no breakpoints

Question

We have an Excel Product that we are trying to get to work on the Mac.  One of the worksheets displays a disclaimer, and if the user clicks on the I Don't Accept radio button and then clicks next, the workbook is supposed to close itself.  The
code is quite simple:
Public Sub HandleNextButton()
    Dim filename As String
    Dim opened_workbook As Workbook
    If AcceptsDisclaimerChecked Then
        FinishSetup
    Else
         ThisWorkbook.Saved = True ' Realize this is redundant based on false on the next line.
         ThisWorkbook.Close False
      End If
End Sub
All of our product sheets are protected by a block of code attached to the Workbook_BeforeClose event:
 Only allow a save if privileged, otherwise mark the workbook as saved
Private Sub Workbook_BeforeClose(Cancel As Boolean)
    On Error Resume Next
    If ThisWorkbook.Saved Then Exit Sub
    ' If this user is not allowed to save, then cancel the save
    CM_Settings = LoadRegistrySettings
    If (CM_Settings And 4096) = 0 Then
        Me.Saved = True
    Else
       ' If the workbook is saveable, then turn on the image to protect the data.
       ' saving the workbook triggers the Workbook_BeforeSave which shows the veil
       Me.Save
    End If
End Sub
This works fine on the PC.  On the Mac, the workbook does not close.  I can see the button fire, and when it gets to the point where the workbook is to be closed, nothing happens.
 However, when I put a break point on the first line of the Workbook_BeforeClose, I can briefly see it reach the breakpoint (the line turns yellow), and then the workbook immediately closes.  A breakpoint anywhere in this routine causes the same
behaviour, the close works correctly.  No breakpoint, no close.  Commenting out the Resume Next has no effect.  The only thing that will cause the work book to close, is to put a break point on on the On Error Resume Next in the code.  If
the workbook.Saved=True is commented out, the Workbook_Close code will exit, at the first if statement, but the workbook will not close.
Does anyone have any clues to this bizarre behaviour?
Thanks, Neil
Neil M. Johnson

Answer 1

There is a difference between MAC and Windows based VBA code. I'd suggest asking MAC related questions on the
Office for Mac  forum instead. The current forum is for Windows based developers.