What happened?

Whenever a lead is used and is in view, the entire world turns black, as shown:

Steps to reproduce:
Open world
Acquire lead
Use lead on any mob

Minecraft Version

1.19.2

Which shader mod are you using?

Iris

Shader mod version

1.6.9

Shader settings

#Thu Dec 12 04:28:33 EST 2024
CLOUD_HEIGHT=5.0
CLOUD_THICKNESS=16
CLOUD_AMOUNT=11.0
LIGHT_DI=0.65
CLOUD_SPEED=0.25
WATER_MODE=1
CLOUD_OPACITY=1.0

Relevant log output

No response

I figured it out. It's a compatability issue with the First-person Model mod. It works just fine if you disable the mod.