DJM-450 Won't Record in on Rekordbox (drivers are installed)

I'm on a mac Mojave (most updated version). I've downloaded Rekordbox and installed everything I think I need. I've installed the DJM-450 drivers and have got a successful green ping!

When I connect the mixer to the laptop Rekordbox does find it. When I unplug it tells me so. In Export mode I go to audio preferences and there is no options to change from mac speakers. I try to click the driver button and it prompts me to just download the drivers again.

In Export mode there aren't any record in source options at all. Please help as I'm trying to record in from the mixer. I've tried everything...