As I am going through the Microeconomics course, I am regularly being asked lesson quiz questions for material in advance (sometimes several units in advance) of my current unit. For example, I am on Unit 2 Lesson 3 but I am being asked about consumer and producer surplus relevant to Unit 4. I noticed the same several times earlier in the course, but this time it seems every question is for another unit. I guess I'll just have to skip getting quizzed for some parts or give up this course and use another system. I have been sending feedback reports for the errant questions and have no idea if these have any effect. It looks like it could be a systemic issue with the data for this course - perhaps the data got corrupted somewhere? Hope someone checks it and fixes the whole course, because the quizzes are important to learning I feel and the material otherwise is generally excellent.