Hi guys, thanks to @GeneralD helpful instructions, I’ve managed to merge VXGI+Flex+Hairworks in 4.15, however in my next step of merging Volumetric Lighting, when compiling I’ve got the “Couldn’t find module rules file for module ‘VXGI’.” from “ShaderCompileWorker D:\Unreal\Engine\UnrealEngine\Engine\Intermediate\ProjectFiles\EXEC 1”. I’ve checked and all conflicts are resolved. Could anyone shred some light of what I’m missing please? Thank you!