[Bug]: Invisible effect on AzureLib-rendered entities causes CTD

[Vetpetmon]

Mod Version

3.1.3

Minecraft Version

1.20.1

Mod Loader

Forge (1.20.1 and older)

Mod Loader Version

Forge 47.4.16

Describe the bug

Giving an entity the Invisibility effect causes the game to hang on the frame before crashing to desktop.

Was observed since Azurelib v3.1.2, on both Linux and Windows systems, and was observed on both dedicated servers and singleplayer.

A crash log was printed:
crash-2026-03-01_14.37.25-client.txt

Suggesting that something in Azurelib's AzRendererPipelineContext class went wrong during an unsafe nullcheck via requireNonNull

In my own project, I'm writing a workaround that makes the affected entities immune to the invisibility effect.

To Reproduce

1. Write any entity renderer using AzEntityRenderer
2. Open the game and apply Invisibility tho the entity (either potions or commands)
3. Client sided crash

Example renderer, entity shown in crash log:

public class GrapplerRender extends AzEntityRenderer<EntityGrappler> {
    private static final EntityEnum id = EntityEnum.GRAPPLER;

    public GrapplerRender(EntityRendererProvider.Context context) {
        super(
                AzEntityRendererConfig.<EntityGrappler>builder(((
                                        (entity2) -> id.getModel())),
                                (entity2) -> id.getTextureVariants(entity2.getVariant()))
                        .setAnimatorProvider( () -> new EntityAnimationController<>(id) ).setScale(1.0f).setDeathMaxRotation(0).setShadowRadius(0.25f).build(),
                context
        );
    }
}