Unfortunately I'm still running into the Achievement Bug with the Tutorial, I've tried leaving as soon I get the Achievement, then I've tried 'completing' the last part to see if that keep it. Neither seem to work, what I have noticed is the Achievement is still there before I got to the next part of run. Hope this is descriptive enough to not be hard understand, but not give away what it is. Cause I'm not sure if this be considered a spoiler or not, so sorry if this isn't enough or not correct way go about this.