Need help with switching to another programming language permanently

My class teaches in JavaScript, so on the Change Hero page, I told all my students to select “JavaScript” instead of “Python (Default).” Unfortunately, some of my students were stuck on Python and even after switching to JavaScript, their code still is Python, or they are on JS for one level and then the next level switches back to Python. How do I switch my students back to JS permanently, once and for all? Thanks!

Edit: The student whose levels keep changing him back to Python doesn’t get gems.

I think what you need to do is click the “Reload” button at the upper right corner of the screen in a level. That should change your students’ language to JavaScript. Be warned, though, it will remove all their code.

Let me know the username of the student whose account doesn’t get gems and I’ll check it out.