What happened?

i have a problem when using this shader and having a torch in the offhand because is supposed to light the dark but it dosent do that i dont know if is the shader or is my pc.

Screenshots

Log output

latest.log

Minecraft Version

1.20.1

Iris Version

iris-mc1.20.1-1.6.11

Operating System

Windows 10

What is your GPU?

NVIDIA GeForce GTX 1650 SUPER

Additional context

No response