As the title says, sometimes it works, sometimes doesn't. I also broke it halfway through a game. When this stops working the other debug functionalities are unaffected.

I don't have a working mouse wheel so this will not be easy to diagnose. :/ Does the mouse wheel otherwise work for you consistently, i.e. for selecting weapons?

It works for me consistently outside of jj2, in jj2 I've never used it to switch weapons. I didn't know this is a possibility. Unfortunately I can't play jj2 until 2023 to try it.

I've acquired a new mouse now but so far haven't had any luck breaking debug with it.