Error 2110 - can't move focus

I cannot for the life of me figure out why this error pops up for one user and not others. Basic gist: I have a user-form that the user fills out, and clicks update. Upon clicking update the form asks "Would you like to update another record?". If the user answers vbYes the line of code is currProvNum.SetFocus to start over. However this error pops up consistently for random users. here is the code around the error, The file is quite big so if it needed I will post it, but for now just the code:

Option Explicit
    'Declare module level variables
    
    Dim bNormalProcess As Boolean
    Dim facilityNameValid As Boolean
    Dim congDistNumValid As Boolean
    Dim congDistNameValid As Boolean
    Dim netSysIdNameValid As Boolean
    Dim netSysIdNumValid As Boolean
    Dim custGroupCodeNameValid As Boolean
    Dim custGroupCodeNumValid As Boolean
    Dim temp As String
    


'Sets up the userform and defines the values of the drop down menus, then sets Boolean variables
'for the validation at the end of the inputs


Private Sub UserForm_Initialize()
   'Initialize variables
    Me.updateButton.Enabled = False
    Me.cancelButton.Enabled = True
    facilityNameValid = False
    congDistNumValid = False
    congDistNameValid = False
    netSysIdNameValid = False
    netSysIdNumValid = False
    custGroupCodeNameValid = False
    bNormalProcess = True
    Dim rngColumn1 As Range
    Dim ws As Worksheet
    Application.ScreenUpdating = False


    ' Populate combo box list that will expand as the range expands.
     Set ws = Worksheets("Master_list")
     
     For Each rngColumn1 In ws.Range("_Col1")
        Me.currProvNum.AddItem rngColumn1.Value
     Next rngColumn1
     
     'sort control ComboBox  Pass the control to the subroutine for sorting
     SORTCB Me.currProvNum
     
     'Define the ranges for dropdowns
     Me.OpenClosedCombo.List = Worksheets("Sheet2").Range("B1:B2").Value
     
     Application.ScreenUpdating = True
lbl_exit:
    Exit Sub
End Sub

'On exit of the first selection box, makes sure there is a value there (even blank) then continues to
'fill the text boxes based on the choice made in the first box.

Private Sub currProvNum_exit(ByVal Cancel As MSForms.ReturnBoolean)
    If currProvNum.ListIndex > -1 Then
        Dim ws As Worksheet
        Set ws = Worksheets("Master_list")
        
        
      
            ' set the text box values with corresponding places on the spreadsheet based on combo box.
            With Me
                .facilityName.Value = ws.Cells(.currProvNum.ListIndex + 5, 3)
                .congDistNum.Value = ws.Cells(.currProvNum.ListIndex + 5, 4)
                .congDistName.Value = ws.Cells(.currProvNum.ListIndex + 5, 5)
                .netSysIdNum.Value = ws.Cells(.currProvNum.ListIndex + 5, 6)
                .netSysIdName.Value = ws.Cells(.currProvNum.ListIndex + 5, 7)
                .custGroupCodeNum.Value = ws.Cells(.currProvNum.ListIndex + 5, 8)
                .custGroupCodeName.Value = ws.Cells(.currProvNum.ListIndex + 5, 9)
                .OpenClosedCombo.Value = ws.Cells(.currProvNum.ListIndex + 5, 10)
                
                'Store the address values for each control in the .Tag attribute
                '(False, False) stores the address as 'A1' instead of '$A$1'
                .currProvNum.Tag = ws.Cells(.currProvNum.ListIndex + 5, 1).Address(False, False)
                .facilityName.Tag = ws.Cells(.currProvNum.ListIndex + 5, 3).Address(False, False)
                .congDistNum.Tag = ws.Cells(.currProvNum.ListIndex + 5, 4).Address(False, False)
                .congDistName.Tag = ws.Cells(.currProvNum.ListIndex + 5, 5).Address(False, False)
                .netSysIdNum.Tag = ws.Cells(.currProvNum.ListIndex + 5, 6).Address(False, False)
                .netSysIdName.Tag = ws.Cells(.currProvNum.ListIndex + 5, 7).Address(False, False)
                .custGroupCodeNum.Tag = ws.Cells(.currProvNum.ListIndex + 5, 8).Address(False, False)
                .custGroupCodeName.Tag = ws.Cells(.currProvNum.ListIndex + 5, 9).Address(False, False)
                .OpenClosedCombo.Tag = ws.Cells(.currProvNum.ListIndex + 5, 10).Address(False, False)
                         
                'marks the row - used in testing
                temp = CStr(.currProvNum.ListIndex + 5)
                 
                 facilityName.SetFocus
                 
            End With
    End If
    
   
End Sub


Private Sub cancelButton_Click()
    Unload UserForm1
    MsgBox "No Changes were made to the selected record."
End Sub

'Runs the routine to put all the information back in the appropriate tagged cells (changed and unchagned)
 
Private Sub updateButton_Click()
    Dim continue As Long
 
    Call PutUserForm1DataBackInWorksheet
    
    Sheets("Master_list").Activate
   continue = MsgBox("Would you like to update another record?", vbYesNo)
     If continue = vbYes Then
            currProvNum.SetFocus
        Else
        Unload UserForm1
  
    End If
End Sub

'The routine grabs the information from the userform and places them back in the stored cells held by the
' .Tag attribute.  Specific command explination blocks below.

Sub PutUserForm1DataBackInWorksheet()

  Dim ws As Worksheet
  Set ws = Worksheets("Master_list")
    
  Dim sAddress As String
  Dim sValue As String
  
  ActiveSheet.Unprotect "Datagen123"
  
  'Get the Worksheet Cell Address
  'Get the value from the UserForm
  'Put the value in the Worksheet
  
  'currProvNum ComboBox
  sAddress = UserForm1.currProvNum.Tag
  sValue = Trim(UserForm1.currProvNum.text)
  ws.Range(sAddress).Value = sValue
  
  'facilityName
  sAddress = UserForm1.facilityName.Tag
  sValue = Trim(UserForm1.facilityName.text)
  ws.Range(sAddress).Value = sValue
  
  'congDistNum
  sAddress = UserForm1.congDistNum.Tag
  sValue = Trim(UserForm1.congDistNum.text)
  ws.Range(sAddress).Value = sValue
  
  'congDistName
  sAddress = UserForm1.congDistName.Tag
  sValue = Trim(UserForm1.congDistName.text)
  ws.Range(sAddress).Value = sValue
  
  'netSysIdNum
  sAddress = UserForm1.netSysIdNum.Tag
  sValue = Trim(UserForm1.netSysIdNum.text)
  ws.Range(sAddress).Value = sValue
  
  'netSysIdName
  sAddress = UserForm1.netSysIdName.Tag
  sValue = Trim(UserForm1.netSysIdName.text)
  ws.Range(sAddress).Value = sValue
  
  'netSysIdName
  sAddress = UserForm1.custGroupCodeNum.Tag
  sValue = Trim(UserForm1.custGroupCodeNum.text)
  ws.Range(sAddress).Value = sValue
  
  'custGroupCodeNum
  sAddress = UserForm1.custGroupCodeName.Tag
  sValue = Trim(UserForm1.custGroupCodeName.text)
  ws.Range(sAddress).Value = sValue

  'Open/Closed Status
  sAddress = UserForm1.OpenClosedCombo.Tag
  sValue = Trim(UserForm1.OpenClosedCombo.text)
  ws.Range(sAddress).Value = sValue
  
  'Get dynamic row and target it at Column AE to datestamp it
  sAddress = "Y" + temp
  sValue = DateTime.Now
  ws.Range(sAddress).Value = sValue
  
  'Get dyanic Row and target it at Column AF to allow for user notes
  sAddress = "Z" + temp
  sValue = Trim(UserForm1.notesText.text)
  ws.Range(sAddress).Value = sValue
  
  Set ws = Nothing
  
  Range("Q1").Select
  
  ActiveSheet.Protect "Datagen123", True, True

End Sub

As an aside, I did check the properties of the combobox and it shows as enabled. Could it be because the msgbox is active and the userform is not? Would currProvNum.SetFocus be trying to set the focus of a non-existant currProvNum on the MsgBox?