OBS not recording audio in Renoise (linux)

I have just installed OBS as I want to take some videos of my tracks in Renoise.

I can record the screen fine but I can’t find a way to record the audio. I can record desktop audio fine if it’s coming from somewhere else (Browser, Spotify, etc.) but it won’t record any audio from Renoise.

I am running a JACK client and use a Scarlett 2i2 audio interface.

Is there anyone here experienced with OBS that knows how to fix this?