You need to set Oculus as the spatialization plugin to use in the project settings for the platform. It’s a little confusing since we support different plugins for different audio engine effects. e.g. you could use Oculus on PC, Resonance on Android, and Steam Audio for Mac or something with the same project, so there needs to be a way to specify that.
This is an issue for lots of people so we’re considering ways to maybe do an auto-discovery and use the project settings as an override or something.