Komplete Kontrol A49 buttons don't light up and don't work in Cubase

I just got a Komplete Control A49 keyboard and I can get it to work as a MIDI keyboard in Cubase to play VST instruments, but the play, record, metro, temp etc. buttons don't work. They all light up when I first plug it in, but they go dark after a second or so.

I've tried to follow this guide: https://support.native-instruments.com/hc/en-us/articles/4406832231441-How-to-Integrate-KOMPLETE-KONTROL-with-Your-DAW

But already on step 5 there is a problem. This guide tells me to click "add device", but my keyboard does not show up in this menu. I am able to use it as a MIDI keyboard though with no setup or anything. I just plugged it in and it works for that. So what do I need to do to get the buttons to work with Cubase? I have Cubase 12.

Here's a pic of the current settings in Studio: