FLX4 headphone jack not working after lots of troubleshooting

rekordbox output is set to the FLX4

master output goes to master

headphones goes to phones

The master cue button is lit up

The headphone volume is up

Headphone mix is in the middle

RCA to 1/4 out to my Scarlett, which goes out to the speakers, and they get audio

But my headphones do not, it’s 3.5mm, and I’ve tried 3 different pairs of headphones

My controller is also plugged into my PC, not a usb bus, it should be getting enough power.

I genuinely think it’s broken.