How ot properly set up oculus audio spatialization and reverb plugin in Unreal

HI there, I can't get oculus spatializer to generate reverb for me. I did everything according to this guide: Use the Oculus Spatializer for Unreal Engine | Oculus Developers, yet it just doesn't do anything. I was testing it on unreal vr template. Have anyone had any succes with utilising it and could help me out with it?