When you craft say a lvl 48 chest piece that reqs say 12 bars of material, when you swap to craft other armor pieces the crafting table "remembers" NOT the level you're crafting, but the material quantity. Thus, if you're not paying attention, you end up crafting stuff of different levels. This is un-intuitive.
Crafting tables should "remember" the level of the item you're crafting, not how many items of material you're using.
Nothing more annoying that traveling to some remote site to craft a couple pieces of armor, swapping to your alt for whom you made the stuff for, and discovering different item levels. Grrrr.