Manual Freight rates not getting displayed

Hello all,

I have defined a manual freight rate under Ship Via Codes:

The packages are also defined:

The Test connection to the carrier is also successful.

And now when I went ahead to create a sales order, select the particular stock item & customer, selected the specific Ship Via
 

or if I select a Shipping term:

The freight rate (Freight Price field) is not getting updated:

What is it that I going wrong here?

Thanks in advance.