Before creating an issue, please make sure you have checked the following:

• This issue does not appear without Chunks Fade In installed.
• All my mods (not only Chunks Fade In) are up-to-date.
• Similar issue had not already been reported before in the issue tracker.

What happened?

Minecraft 1.21.1
Neoforge 21.1.132

Modlist:
Alternate Current [1.9.0]
Better Biome Reblend [1.5.1]
BetterF3 [11.0.3]
CIT Resewn [1.2.2+1.21]
CITResewnNeoPatcher [9M6IhSgw]
Catalogue [1.11.0]
Chunks Fade In [2.0.3-1.21]
Cloth Config v15 API [15.0.140]
Clumps [19.0.0.1]
Concurrent Chunk Management Engine [0.3.0+alpha.0.59+1.21.1]
Configured [2.6.0]
Connector Extras [1.12.1+1.21.1]
Cubes Without Borders [3.0.0+mc1.21]
Ding [1.5.0]
Entity Model Features [2.4.1]
Entity Texture Features [6.2.9]
Euphonium [1.0.3+1.21]
Euphoria Patcher [1.5.2-r5.4-neoforge]
Fast Paintings [1.21-1.2.15]
Fastquit [3.0.1+1.21neoforge]
Ferrite Core [7.0.2]
Forgified Fabric API [0.107.0+2.0.24+1.21.1]
Get It Together, Drops! [1.3.2]
ImmediatelyFast [1.6.0+1.21.1]
KryptonFoxified [0.1.0+mc1.21]
Lithium [0.14.8+mc1.21.1]
Mineblock's Repeated Utilities [1.0.8+1.21+neoforge]
Model Gap Fix [1.21-1.10]
ModernFix [5.20.2+mc1.21.1]
Mods Optimizer [2.1.0]
Moonlight Lib [1.21-2.17.32]
More Culling [1.0.5]
Noisium [2.3.0+mc1.21-1.21.1]
Presence Footsteps [1.10.3+1.21]
ProjectileDing [1.0.0]
Rebind Narrator [2.0.3]
Reese's Sodium Options [1.8.3+mc1.21.4]
Saturn [0.1.5]
ServerCore [1.5.5+1.21.1]
Sinytra Connector [mk9pRgwU]
Sodium [0.6.9+mc1.21.1]
Sodium Extra [0.6.0+mc1.21.1]
Sound Physics Remastered [1.21.1-1.4.8]
Sounds [2.4.5+1.21.1+neoforge]
Yeetus Experimentus [87.0.0]
YetAnotherConfigLib [3.6.3+1.21.1-neoforge]
iChunUtil [1.0.3]

Steps to reproduce

Enter game.
Open settings (Sodium).
Select Chunks Fade-In tab.
Enable chunk animations.
Press apply.

Logs

latest.log

Crash Report

crash-2025-03-08_17.42.09-client.txt

I tried going over to the configs folder to configure the mod but did not find a config file. Is it named different or does it not actually have one?

I made my own config file named 'chunksfadein' using prior versions as reference. Changes to this file applies in game. Using the sodium settings to apply configs still crash the game.

Tried enabling chunk animations 3 times.

• 1st time: Crashes and config did not apply
• 2nd time: Crashes and config did not apply
• 3rd time: Crashes and config did apply

Tried to disable it as a test 2 times.

• 1st time: Crashes and config did not apply
• 2nd time: Crashes and config did apply

All 5 tries crashed. Still no config file is generated.

Hi! The error happens because you don't have Iris. This is a known issue and it'll be fixed in the next release.

Hi! The error happens because you don't have Iris. This is a known issue and it'll be fixed in the next release.
Thank you, I'll have it installed right away!