• Forge Version: 36.2.4+
• Mod Version: 2.7.1+
• Can you reproduce this issue with relevant mods only?: no (Optifine)

TO REPRODUCE:

install optifine, go it video settings > performance settings > turn everything on but smooth fps

make a new world of Default type

use /locatebiome to find a snowy biome such as minecraft:snowy_taiga

watch the console for log spam (usually immediate after first chunk shows up with snow)

I can't reproduce it

Issue easily reproduced when using Kaleidio's Battle Pack 3.7.3 as a core and swapping snow real magic for 2.7.2 (and kiwi to latest)

I also had Fast Render and Dynamic Updates on. try testing again. with 2.7.2 as well as that was the last version I tested on.

edit: Kaleidio's Battle Pack is not needed to find this issue.

debugging your modpack is not my job. please make sure you have provided a minimal reproducible example when you reporting bugs

welp. I'm able to reproduce it with your mod, kiwi, and optifine on their own

mods present:

proof of bug:

proof of optifine settings:

Hardware specification (to help rule out hardware specificity)
Nvidia RTX 3080 GPU running driver 496.49
Ryzen 7 5800X CPU

notes:

I noticed that on the screenshot you sent you were on a super flat world. try using /locatebiome in a freshly generated world instead :) it might be occuring on blocks you didn't test

There ya go, glad that was quick for me. a reproducible issue has been found for you. I have included instructions on the main comment.

hope that's more convenient for ya. if you want video proof I could give that too.

also make sure you didn't disable "show opengl errors" in your video settings

still can't reproduce. I also reset options before testing

if you need me to send you video recorded proof, I will. this looks like it could be a hardware specific issue.

you might want to have somebody else who has similar hardware to mine test for you

and you have show opengl errors on? did you check the latest.log?

yes. what if you disable snow real magic? will the error occur?

the error does not occur without the mod. if it did then snow real magic 2.5.8 wouldn't be working.

proof:

I can do a version specificity check if you'd like, to see how far back I can go before the error stops

Hello. Could you help me check if it is fixed?

libs.zip

hiya, I'll check right now, sorry for the delay

yup, all fixed, will await curseforge publication :)

amazing job, and thank you for being strong and supporting optifine, I know what hell it can be