Sorry, should have specified.
The switch itself stopped working. To give some more info, I changed the space bar on my keyboard today, and before that it was working perfectly fine. So I probably messed up with a Space+FN combination but I have no idea what, and I know my way around my Poker fairly well, when it comes to layers and programming keys and all that. And I can't find anything in the user manual either, which is a bit odd.