Minecraft Username: Ancastal Brief Description: Using the command /stonecutter or its shortcut /stc doesn't open the stonecutter GUI. Instructions: Type /stonecutter. Send. The GUI doesn't open. You receive an error. How many times did you recreate this?: Many times. Result: The result I got was an error message. "An internal error occurred while attempting to perform this command." Expected Result: The stonecutter interface should open as usual right after sending the command. Evidence: N/A
Adding onto this, it seems all extcreations++ 1.14 bench commands (/cartography, /grindstone, /loom and /stonecutter) all give same error.