VRC.PC.Audio.1 - Unreal Engine problem

Hi, I am trying to create a build for Rift and submit it to the Oculus Store but during the validation process the VRC.PC.Audio test failed - it looks like my game does not target the correct audio device.

I tried all of the settings and solutions I found on different forums and documentations but non of them worked - although most of them looked a little bit outdated. The only thing I found is that it should work automatically but unfortunately, it isn't.

I'm using Unreal Engine 4.25.4 with the built-in Oculus SDK.

Is there any known solution or workaround for this problem or I just simply missed something?