What happened?

Particles meant to fade when using Particle Tweaks no longer fade when using Iris in 1.21.4. (worked fine in 1.21.3)

Screenshots

Without Iris:
https://github.com/user-attachments/assets/18595318-4615-4142-ae2b-fa98ef59d9e4

With Iris:
https://github.com/user-attachments/assets/80114665-7b5d-400d-b032-48ff890ebff4

Log output

Without Iris: https://mclo.gs/zDDgi8g
With Iris: https://mclo.gs/AuMfLEi

Minecraft Version

1.21.4

Iris Version

iris-fabric-1.8.3+mc1.21.4.jar

Operating System

Arch Linux

What is your GPU?

Nvidia GeForce RTX 4070

Additional context

1.21.3 for good measure:
https://mclo.gs/YtaulPj
https://github.com/user-attachments/assets/0a06587f-1572-449a-9baf-6236161c38d0