ms-Excel Worksheet transfer between worksbooks and vlookup - vba

Question

I have a simple problem(at least seems to be) that I just cannot seem to be able to find a good solution to:
I have 4 workbooks, that all contain two of the exact worksheets(rest of the worksheets are unique for each workbook). I am storing these two worksheets in a seperate workbook(so 5th workbook). Out of these 2 worksheets, 1 of them is a Data sheet made up of many tables, which I do updates on and the other one is a sheet called V, which just uses some vlookup functions to bring up the related data from this Data sheet.
I am trying to find a way to be able to pass along this data sheet to each individual workbook, instead of editing the data sheet individually for each workbook(All 4 of them).
I was able to come up with the following macro, which checks if the sheet already exists and if it does it deletes it. Then it opens up location of the excel file, copies this worksheet to the workbook and therefore I have the most "updated" version of this data worksheet.
Sub UpdateT()
Sheets("data").Visible = True
Dim wb As Workbook
Dim aw As Workbook
''Open 2nd Workbook
Set aw = Application.ActiveWorkbook
'Check if data worksheet exists, and if it does delete it
If Not GetWorksheet("data") Is Nothing Then
Application.DisplayAlerts = False
Worksheets("data").Delete
Application.DisplayAlerts = True
End If
'Check if T worksheet exists, and if it does, delete it
If Not GetWorksheet("T") Is Nothing Then
Application.DisplayAlerts = False
Worksheets("T").Delete
Application.DisplayAlerts = True
End If
Set wb = Workbooks.Open(Filename:="C:\Users\yilmadu001\Desktop\Update.xlsx")
'Copy To Different Workbook
wb.Sheets("data").Copy _
After:=aw.Sheets("Data1")
wb.Sheets("5120 TI").Copy _
After:=aw.Sheets("MENU5120")
'Close 2nd Workbook
aw.Save
wb.Close
'Hide the data worksheet
aw.Sheets("data").Visible = False
End Sub
'Function to check if worksheets exist
Function GetWorksheet(shtName As String) As Worksheet
On Error Resume Next
Set GetWorksheet = Worksheets(shtName)
End Function
The problem is the following:
When the new Data worksheet is transferred, the V worksheet is no longer working with the Vlookup function to be able to point to the relative information. So then I thought, okay what if I transfer BOTH Data and V worksheets, however that also did not work.
Is there a way to be able to use Vlookup, while copying the Data sheet? (The name is exactly the same I do not understand why it does not seem to be able to point to the cells of the table). It just looks blank, can't point to anything.
NOTE: I am not changing the format of the Data tables, basically just the values, so the format is the exactly the same.
It is probably important to note that the main excel workbooks(the 4) are in use 24/7, therefore I cannot go the other way(Update from Data workbook to the main workbook). I must "pull" the updated worksheet rather than "push".
If anyone has any suggestions I'd really appreciate. Thank you.