Hot reload only adds code and doesn't remove it

[xeon826]

When I run yarn run dev everything works as it should but if I'm editing for instance, App.js and I add a console.warn somewhere, the app updates accordingly but then if I remove that console.warn statement, the app still behaves as it was there. It's only adding code and not removing it. The .vue components behave normally though, just not App.js, I haven't checked any other vanilla js scripts.