A few people have brought up the fact that crafting with engineering
items is using comms differently than before. This is, in fact, not a
bug, but a fix for one. Engineering items were never meant to only make
you use the first commodity in the list, but a mistaken implementation
caused that "feature." They now work the way that they were always
intended to: they will halve the cost of the comms required to make an
item (but there will always be a minimum of 1 required of each type).

Danaglas

Penned by my hand on the 17th of Vita, in the year 473 AD.