It seems, anyway, unless it was purposefully done this way. Anyway.
I wanted to unlock the achievement for white hair, so I spent a long time getting the crystal spider feelers for a recipe. You have to craft 100 times. So when I went to craft, I told it to craft 100 times, but it only counts it as one session for some reason.
I made sure to test that it didn’t want 100 unique items, and it doesn’t. It counted my next craft of the same recipe.
Sorry to bump but just to update;
I tried again and had to do the crafts one at a time for it to count. Does not count if you use the batch craft option. Not sure if bug or intentional.
I also went through the same, I craft 74 items (9min crafting) only count 1. Thats so sad and dissapointing 
Poor hanamings they die for nothing.
to hell with achievements… no black hair… wasted time for a single point of crafting… yes beta i know. just sad. sad panda. kappa.