I have a quiz that involves a lot of LaTex. When students take the quiz, half of the students will not have the LaTeX render. Instead, they see the LaTeX code (ex. \frac{3}{5} ) It either works for every question, or it fails to render for each question.
This is happening on lab computers where they are running the same hardware, OS, and Browser. In one case, switching from MS Edge to Chrome fixed it, however, most students were using Chrome and it was not displaying properly.