Some recipes are not unlocking on 17w18b (And 1.12-PRE1)
Namely: Pickaxes, Axes, Swords, Buckets and possibly more.
I have the materials. But the recipe is not unlocking.
Sticks, Planks, Shovels, Torches, Shields, Signs and a few others did unlock ... but that was it.
I also notice that thou Chests are locked. I am able to craft them. (It would unlock as soon as I craft it.)