Hi There

If you set up 2 Categories A & B
If you setup 2 Products, 1 in Category A and 1 in Category B
Setup the site to use Shipping Method by Quantity and create a custom shipping method
Setup in the shipping area Category map so that the 2 categories have special shipping rates

In By Quantity  add 4 entries
Category A and Quantities of 1 to 1 $15.00
Category A and Quantities of 2 to 2 $30.00
Category B and Quantities of 1 to 1 $5.00
Category B and Quantities of 2 to 2 $10.00

Add 1 of each product to your cart and i would expect the shipping would be $20.00 (1x $15 & 1 x $5)
Instead the system is picking of $30.00 which means it seams to be ignoring the Category if more than 1 item is in the cart and using Category A's value

this is on version 5.25 and 6.2.2 DNN

Is anyone else experiencing the same issue?

Cheers Marcus