Invalid Property value error setting focus of a userform checkbox

[Ark68]

Is anyone able to shed some light as to why I might be getting an "Invalid property valve" with the code highlighted in red below?

With frmservice
        .Controls("frm_service" & index).Visible = 2
        .Controls("frm_service" & index).Caption = "  SERVICE " & index & "  "
        .Controls("cbx_s" & index & "_rln").Enabled = True
        .Controls("cbx_s" & index & "_rln").locked = False
        .Controls("cbx_s" & index & "_chg").Enabled = True
        .Controls("cbx_s" & index & "_chg").locked = False
        .Controls("tb_s" & index & "_upr").Enabled = False
        .Controls("tb_s" & index & "_lwr").Enabled = False
        .Controls("cb_s" & index & "_crew").Enabled = False
        .Controls("cb_s" & index & "_div").Enabled = False
        .Controls("cb_s" & index & "_base").Enabled = False
        .Controls("cbx_s" & index & "_rln").SetFocus
        .Controls("cb_s" & index & "_pitch").Enabled = False
        For lbl = 1 To 6
            .Controls("lbl_s" & index & "_" & lbl).Enabled = False
        Next lbl
        .Controls("cbt_s" & index & "_del").Enabled = False
        .Controls("cbt_s" & index & "_end").Enabled = False
        If index < 8 Then
            .Controls("cbt_s" & index & "_add").Enabled = False
        End If
    End With

 

[rlv01]

Likely because the control type in question does not support the SetFocus method.

 

[Ark68]

Thank you.