What happened?

Using the Fear Nightfall pack with all the default settings, turning this shader on thats included the sky flashes or bugs like this

Minecraft Version

1.20.2

Which shader mod are you using?

Iris

Shader mod version

Oculus 1.7.0

Shader settings

#Sat Dec 14 19:41:50 EST 2024
shadowMapResolution=1024
TAAU=true
ENTITY_SHADOWS=false
TAAU_RENDER_SCALE=0.66
GRADE_CONTRAST=1.40
INFO=1
GRADE_BRIGHTNESS=0.99

Relevant log output

https://imgur.com/a/x35q8HF Image of the issue