Kuda Shaders - smooth lighting is broken

[rysiaczekk]

What happened?

Smooth lighting isn't working on all versions of Kuda Shaders on Starline version.
On normal Iris it works.

Screenshots

Relevant log output

No response

Iris and Minecraft Version

iris-mc1.17-1.1.2-starline+build.546.jar for Minecraft 1.17.1

Shaderpack Used

KUDA-Shaders v6.1 Legacy

Are you running Sodium along with Iris?

Yes

Operating System

Windows 10

What is your GPU?

Nvidia GeForce 1050 TI

Java Version

Java 16

Additional context

This is how it works on normal Iris.