Update: I updated the FleX, WaveWorks and HBAO+ branches of /NvPhysX/UnrealEngine to 4.7.3 (along with the release branch, which is straight-vanilla UE4 release). The VXGI team is taking a look at the 4.7 update, apparently there is some subtlety to it, and they are combining effort with some other recent fixes and improvements that address some of the issues discovered by users; hopefully we’ll have a VXGI update next week some time. I’m turning my attention now to problem where WaveWorks and FleX refuse to play nicely with the GPU resources.
Many thanks to for his efforts on the 4.7 upgrade, there were some changes in UE that confused me and after studying his fixes I just merged them as they were. Much appreciated, sir!