You have to do a quest for collection skills now, sort of...
There will be a NPC at the crafting station you use with a ring over her head. Want to say its usually the supplier NPC. Talk to them, they'll give you a book, open inventory, read book, talk to NPC again. You'll then be able to work on the next tier and master T1. Get use to this quest, you'll have to do it for every tier.