It worked fine for me when I tried yesterday, make sure it finished downloading and use 7-zip.
(But that specific branch doesn’t work right now anyhow, so there’s no use in trying.)
Alright, I’ll give it a spin and see if I can be of some help, it’s the least I can do. Especially since all of you spend so much time whipping these releases into working order.
(Sigh, imagine a world where Unreal had robust enough plugin support that Gameworks features could just be implemented as plug-n-play plugins.)
Edit: Well @HaBe2305 , I gave it a spin, but didn’t exactly get far.
Open up CornellBox:

Open up hallway example:

Make an empty Project, that works.
Open the PostProcessVolume and enable VXGI Diffuse:
