Nop 3.9 Views/OrderSummary.cshtml not updating anything on cart

On Views/cart.cshtml included a partial view OrderSummary
  

<div class="page-body prabir">
        @Html.Partial("OrderSummary", Model)
    </div>

I believe Partial view for above is Views/OrderSummary.cshtml  but
when I update anything on Views/Cart.cshtml it is working but not from the Views/OrderSummary.cshtml

Any help would be much appreciated and thanks in advanced  

Cheers

File is Views\ShoppingCart\OrderSummary.cshtml

Do you have a Theme installed ?
If so then it may be calling an equivalent file from the Themes directory instead of the one you are modifying

Hi Yidna
Thank you very much for your help. You are right , there is a Theme installed and summary coming from there .

Thanks again