Minecraft version

1.21.1

CodeChickenLib version

4.6.1.524

CBMultipart version

3.5.0.151

ProjectRed version

4.22.0-alpha+11

What happened?

I attempted to place a Toggle Latch and the latch was invisible. The game then lagged and after a about a minute the game CTD and the world is unplayable afterwards.

Crash log

crash-2025-08-17_21.23.24-client.txt

latest.log

How do you make it happen again?

Create a new world, place a Toggle Latch and the game will freeze and crash
(Warning: HEAVILY modified ATM10 instance. Like, 851 mods heavy)

Latest.log attached, debug.log refused to upload.

I'm having the exact same issue with a modpack that i made. Around 250 mods, and when placing toggle latch, game dies and the world won't open anymore.

Using NeoForge

For those seeking a workaround: you can technically remove the toggle latch by using /fill x1 y1 z1 x2 y0 z2 minecraft:air replace cb_multipart:multipart in a server when not standing in the rendering distance of the latch, but this woud potentially remove other multipart blocks.