Before continuing if you are reporting an issue, please ensure that all mods involved are updated to the latest version available, if your issue with with intermod compatibility such mixing C&B bits with other blocks make sure that MCMP is also updated. If your issue is a crash, be sure to include the crash log with your report.

For any bug reports please provide the following details as well,

• MC Version: 1.17.1
• C&B Version: 1.1.41 ALPHA
• Forge Version: 37.0.104
• Do You have Optifine: Never

Steps to reproduce: Set chisel to connected material 8x8, chisel the top half of a block that is next to a water source block, and then break the chiseled block. Game will crash, and if the block is picked up by the player during the crash/when the game is next loaded, opening the inventory will also crash.

Crash Log: https://pastebin.com/cfJxuNzR

Client Latest Log: https://pastebin.com/KN0e1j9j

Client Debug Log: https://pastebin.com/x3uVR4Gy

Not reproduceable, but possibly fixed in the 1.18 updates