[VR, Oculus, UE5.3, Audio, HDM] No audio on headset, only on PC

Development Audio
,
1

I can’t get the sound to play through the headset, only on PC speakers. Where is the option I’m missing ?
I tried Oculus Plugin and removed it.

As my project is Open Source :

2

Hi, did you try to set your computer’s audio output to “Oculus headphones” ?
Unreal uses your system default output.