In some of the Front End Career lessons, whenever I get to the exercise mark, it “rewinds” to a prior code and erases whatever setup was done by the instructor. One example is this lesson. It does away with Per’s setup code in HTML and CSS. This started happening recently., I’ve tried with multiple browsers and no extensions and I still have the same issue. Other examples of this happening is the “Guess the expression - truthy or falsy?” lesson and the “Write your first function parameter” one.
Here’s a video I captured of this issue.