Terrafrom on azure vertual machine scale setextenstion

I have used azurerm_virtual_machine_scale_set for while and when I install the azure vmss extension automatically update/create with newer_modle on the instance image. however, the newer module terraforms 12.00 “azurerm_linux_virtual_machine_scale_set” I need to update to a newer model manually or add “LB probe” and the update needs to automatic.
I don’t have LB to associate to vmss why the newer model force that? can I use the older model without the newer upgrade?