Meta XR Audio SDK plugin Unreal 5.3 reverb

Did anybody get the MetaXRAudio plugin to work with the implemented reverb? I have followed the description  here: https://developer.oculus.com/documentation/unreal/meta-xr-audio-sdk-unreal-room-acoustics/ and did only get the spatialization to work properly. I am testing on unreal 5.3 with a blank project only with the Meta XR Audio enabled using regular Headphones. I havent found anything on the web so far.

Any pointers or help are greatly appreciated.