Cannot Continue to Next Lesson*

I currently completed Lesson 4 Advanced Utilities Part 2, but it won’t let me continue to the next part. I already did the quiz for this part and passed with a 100%. What am I doing wrong? Do I need to fully complete the quizzes for the previous parts as well? Please help.

Edit: Is it because I am doing the tutorial on a Mac?

Hi Christina,

What do you mean by “it won’t let me continue to the next part”? What exactly happens that prevents you from going to the next part? Can you share a screenshot or a screencast?