Mod Name

uilding But Better (BBB)

Mod Homepage

https://www.curseforge.com/minecraft/mc-mods/building-but-better

Minecraft version

1.21.1

Describe the bug

When placing an Iron Fence block from the mod "Building But Better" (version 2.0pre3), the game crashes immediately with an IllegalAccessError. Connector seems to block access to a private Minecraft method that the mod tries to call. Error message: java.lang.IllegalAccessError: class com.starfish_studios.bbb.block.IronFenceBlock tried to access private method 'boolean net.minecraft.world.level.block.WallBlock.m_58010_(...)'

Steps to reproduce

1.Launch Minecraft 1.20.1 with Forge, Sinytra Connector, and Building But Better (bbb-forge-2.0pre3.jar) installed.
2. Create or enter a world.
3. Try to place an Iron Fence from the BBB mod.
4. Game crashes instantly.

crash-2025-10-21_19.45.23-client.txt

Logs

https://gist.github.com/arouiiss/d97218e052cb605bd703cf23aa9590aa

Additional context

The crash occurred while trying to place the Iron Fence on a grass path block.
However, the issue also occurs when placing it on any other block, so the crash is not terrain-specific.