Northrend Engineering

I missed something along the way.
I have a Jeeves that I made, that now requires 75 skill to use, and that I no longer know the schematic for. The only thing I can think of is if I changed professions and then came back to this one, I don’t remember doing that, or something happened during the last year that changed everything, I’m a bit confused. Has this happened to anybody else or does anybody know what changed?

Upon further inspection I must have changed my profession at some point because I have one skill point in almost all expansions. wasn’t their a book that allowed you to relearn your skills and get your points back?

The books in Legion allowed you to get recipes back that you had to do quests for in Legion. BfA also has those books for gathering professions. However, you do not get your original skill level back nor any recipes that don’t come from quests.

You also don’t get any of the recipes from past expansions back that you knew. At a minimum, that means you can’t relearn the Zapthrottle Mote Extractor recipe.