Enabling Use First Bounce Ray Guiding in GPU Lightmass results in an all-black bake. I haven’t found a workaround yet, although I recall this feature working previously. I am unsure what might have caused this issue.
I’ve this issue while working on UE5.3 but I think in other versions the problem persist.
Rendering on a Nvidia RTX 4060.
I have been using GPU Lightmass in this proyect for over a year without any issue. The only conclusion I’ve reach is that an update from Nvidia drivers made GPU Lightmass obsolete.