Thread: set .Visible = True on Subform, From Another Subform

I have a "master" form which contains a few subforms that are shown or hidden depending on the context of the master form (which options are selected, etc.).

In one subform, the user enters audit information. I attempting to make the AfterUpdate subroutine set on that subform to hide itself and show another subform. There is a button on the master form that does just this, but I want it to do it automatically when the user updates the record. I just can't seem to get it to work, though.

    Dim Resp As Variant
    
    If Not IsNull(Me.Date_of_Doc_Audit) And Not Me.Post_Closing_Memo_Sent Then
        Resp = MsgBox("Were there Post Closing Exceptions?", vbYesNoCancel, "Post Closing Memo")
        
        Select Case Resp
        
        Case vbYes
            Call Me.Parent.cmdPostClosingMemo_Click
        Case vbNo
            
        Case vbCancel
        
        End Select
        
    End If

Me.Parent.cmdPostClosingMemo_Click looks like this:

Public Sub cmdPostClosingMemo_Click()
    Me.lblTitle.Caption = "Post Closing Exceptions"
    Me.frmDocumentation_sub.Visible = False
    Me.frmInsuranceException_sub.Visible = False
    Me.frmDocException_sub.Visible = False
    Me.frmTaxException_sub.Visible = False
    Me.frmPostClosingMemo_Sub.Visible = True
    
    Me.frmPostClosingMemo_Sub![Date of Memo].ColumnWidth = -2
    Me.frmPostClosingMemo_Sub![Document 1 Type].ColumnWidth = -2
    Me.frmPostClosingMemo_Sub![Term on Document 1].ColumnWidth = -2
    Me.frmPostClosingMemo_Sub![Document 2 Type].ColumnWidth = -2
    Me.frmPostClosingMemo_Sub![Term on Document 2].ColumnWidth = -2
End Sub

The cmdPostClosingMemo_Click subroutine runs, because the lblTitle lable changes, but the subforms do not hide/unhide.

I've played around with the syntax, done oodles of Google searches, etc. Can someone help me out?

Me.Parent.SetFocus does not work. Neither does Me.Parent.cmdPostClosingMemo.SetFocus. It changes the lblTitle.Caption, but just doers not hide/unhide the subforms.

Looking at this site (http://access.mvps.org/access/forms/frm0031.htm) I am thinking maybe it is not possible to control a subform from another subform. The "To refer to a subform control property, like SourceObject" section has N/A if you are on the parent form or any subform. If this is the case, I can't imagine what the reason is. Should I SetFocus on another for briefly and have that form's "SetFocus" event do the work?