Having trouble with show/hide/visible in VB .net It only works the first time - vb.net

Question

I have a multi form application I'm close to finishing, but I have a HUGE problem.
I need to keep a main form open, basically a communications task, that opens other forms that display general status and asks for various user input. The problem is that when any form is requested either automatically by the status from the communications engine, or via user button press. The first time a form is requested there is no problem, however the second time any given form is requested, it shows on the windows task bar, but will not open on the screen. All form switching in this application is handled by the same routine.
NOTE: The form named "WEDGE_MENU_SCREEN" is the form that stays open and active, only one other form should be active at any time.
Here is the code.
Public Function GoToForm(Requested_form As Form) As Boolean
'in a multi form app, we only want ONE form active on screen at any given time.
'all screen change requests should come from the same operating thread
Dim Not_found_form As Boolean = True
' Dim frm As Form
Dim formNames As New List(Of String)
Dim xformNames As New List(Of String)
'get a list of active forms running under this main thread LESS the static one
For Each currentForm As Form In Application.OpenForms
If currentForm.Name <> "WEDGE_MENU_SCREEN" Then
formNames.Add(currentForm.Name)
End If
Next
'from that list create another less the requested in the case that the requested form is already up
For Each currentFormName As String In formNames
If currentFormName <> Requested_form.Name Then
xformNames.Add(currentFormName)
End If
Next
'if the second list is not empty
If xformNames.Count > 0 Then
'hide all active forms in the second list
For Each currentFormName As String In xformNames
Application.OpenForms(currentFormName).Visible = False
Application.OpenForms(currentFormName).Opacity() = 0
Next
End If
'then activate the requested form
Requested_form.Visible = True
Requested_form.Opacity = 1
Return True
End Function
FURTHER NOTE: I have tried the following as well
Application.OpenForms(currentFormName).Hide()
with Requested_form.Show()
ALSO
Application.OpenForms(currentFormName).Close()
with Requested_form.Show()
Any help would be greatly appreciated.
-Jim

Answer 1

Maybe if you make the logic a bit simpler it would help. The 3 loop can be combined into one.
For Each currentForm As Form In Application.OpenForms
If currentForm.Name <> "WEDGE_MENU_SCREEN" AndAlso currentForm.Name <> Requested_form.Name Then
currentForm.Visible = False
currentForm.Opacity() = 0
End If
Next