What is the issue?
Chunks fade in when multiplayer server gets laggy

Conditions to reproduce
When multiplayer server starts to get laggy, chunks fade in for no reason.

As shown in the video, chunks fade in multiple times when server gets laggy, which is annoying.

Does this issue appear only with Sodium, Iris and Chunks Fade In?
Yes

Issue still occured when shader was off.
Issue didn't show up in singleplayer. Maybe singleplayer isn't laggy enough? idk

Mod
chunksfadein-v1.0.4-1.20.1
iris-mc1.20.1-1.6.9
sodium-fabric-mc1.20.1-0.5.3
indium-1.0.27+mc1.20.1

Hi, sorry for being late. Can I have the latest logs of this issue, please?

2023-10-03.log.zip
Here are the logs of that day. The server now isn't laggy enough to reproduce the issue. XD