My headphone does not catch any sound from cubase or ur12 eventhough the recording bar is working. fluctuated based on the

Hi everyone,
I need with the sound for headphone because I used it on UR12 and cusebase aI but it doesn’t work. My headphone works perfectly. I can hear sound from the system but not the sound I record it. Please help. I did check the audio setup and linked it to Yamaha Steinberg USB thing but nothing happens.