So Ive been trying to get the AI perception component working on my project since 4.8. Ive tried using it with code and blueprints, but both ending up not working. I set up the sight sense but no matter what I cant get the perception debug trace to show or get it to react to anything. I discovered today that it works no problem on the normal pre compiled version of the engine but Im building my engine from source. Is there something Im missing that I need to do to get AI perception to work on a source built version of the engine. Thanks.