I have the Big Royal Mail mod installed on a new site which I hope to go live in January. The module works fine (shows only the correct shipping options and hides the others.

The problem I am having is that the module appears to be not recognising the weight and all shipping options show 0.000kg regardless the number of products added to the cart.

I cant figure this out. The shipping weights are added to the product in admin, and when i increase the number of items in the cart the total weight increases in the shopping cart accordingly.

Any ideas what is wrong here. I have the zones etc set up per Big Royal Mail.