Forge 47.2.0
Minecraft 1.20.1 (java)
MakeUp - Ultra Fast | Shaders-8.8f.zip

For some reason the MakeUp - Ultra Fast shader causes blackouts at night with hourglass. As is shown in the photo I'm holding a torch and in pitch blackness. Toggeling the shader off and on toggles the blackout. The light does eventually come back on it's own during daytime. I changed the shadows to "on" and ambient occlusion "on" and it possibly fixed it? My settings within the shader were "shadowless low" and when I changed the two settings it's letting me get through the night without a blackout so far. I'll post again if it comes back.