How to play REV engine sound in UE4?

Question

Hello,

I'm not a sound designer and it's my first experience with Wwise.

I test the Wwise with CrankcaseAudio REV plugin in my vehicle project. I already have a license for Wwise and REV.

The problem is that a sounds made with REV cannot playing in UE4 project. When I play the REV sound in UE4, I hear nothing. In Wwise window when I press play button I hear the sound.

Simple sounds with events can be played and I hear them.

Anyone can help me?

Thanks.

Sorry for my bad English :)