I have up to better learning III, but recently it stopped working. I know this because I'm currently learning Tinkering V, which standardly takes 10 days, but it used to be much lower (I don't remember the number but I would have known 10 days... i think it was 6 or 7?).
Has this happened for anyone else? I've tried changing to other skills (this happened during the last time the game was open), but it seems to effect them all.
- MiTYH