Allright, i’ve spent most the afternoon on this and won’t stop until it works: i’m merging VXGI and Flex on UE 4.14.3 .
Merely started Unreal Engine 3 weeks ago, first dive into the code, struggled quite a bit at first 
Not sure we can port Turbulence to a build running Physx 3.4, there’s some particles library that were dropped and are no longer supported by PhysX