@gamingonlinux Yup! If you bump reflections to medium it "fixes" the pitch black problem. I haven't ran into any save loading issues myself, but I wouldn't be surprised with some of the updates the modder has made that broke it. I really don't like the INI tweaks because, even when the lighting does work, it breaks shadows entirely.
I'm personally just using the compressed textures portion of it and I've been tweaking the INI files myself for the graphics presets separately. The compressed textures help a lot with VRAM utilization and has little impact on texture quality. At this point I'm getting Fallout 4 on console levels of performance . 😅