What happened?

I have tried Emeddium and I tried Rubidium.
Installed with Oculus, Iris

The problem only happens when I use any shader no matter which shader I use.

As it ONLY happens at specific in-game time (NOT real time, but in game time).
from (sunrise) 00:00 to 01:00
then
from (sunset) 11:00 to 12:00

Here is what happens. And I can't get to the bottom of this issue.
except with turning off shaders completely.
I have even tried 5 different shaders, including.
BSL Shaders
Complementary Unbound Shaders
Sildur's Shaders.

And I still get this problems.
Pictures below.

Screenshots

Relevant log output

There is no log, as this is a graphical issue when using shaders only.

Minecraft Version

1.20.1

Oculus Version

oculus-mc1.20.1-1.6.9.jar

Rubidium Version

rubidium-mc1.20.1-0.7.1.jar

Operating System

Windows 10

What is your GPU?

Nvidia GeForce 1070-Ti

Java Version

Java 20

Additional context

Its frustrating as I don't know what mod is actually doing this.
I even tried embeddium and it still does this. as I am trying to find the source that is causing these problems. 🤔

If anyone knows please help.
Thank you.

getting the same issue with a very similar set-up, but with a 2060, half the screen is obscured at the same times of day.
I've tried bsl, several different versions of complimentary, and it happens with all of them, but not makeup-ultrafast, nostalgia shaders, or vanilla plus shaders

getting the same issue with a very similar set-up, but with a 2060, half the screen is obscured at the same times of day. I've tried bsl, several different versions of complimentary, and it happens with all of them, but not makeup-ultrafast, nostalgia shaders, or vanilla plus shaders

what modpack are you using? seems like an incompatibility with a mod and I'm trying to get to the bottom of it for my own pack right now.

are you using MOD Block of Sky LuminaSapphira/block-of-sky#7, i was having the same issue and came across this , i removed the mod and everything went back to normal