I am facing one problem while I am adding a product to cart at first time.
In shopping cart page the shipping amount is not calculated but when I go to the checkout page and return back to the cart page the shipping amount is showing.
And this problem occurs only for first time adding a product to cart.
Please help regarding this issue.
But shipping price is calculated for any product except 1st product.
And this scenario is changed if I checkout and then return back to cart page-the shipping price appeared.
I have debugged and found that for the first product shipping amount is not calculated.