In my mod my GUI has buttons, and I want to change a string in my tile entity but it doesn't change the value in the tile entity when I press the button. It also doesn't change the item in slot 1 and slot 2 because of this. https://github.com/code-lyoko-modding/CodeLyokoMod/blob/master/lyoko/entities/TileEntitySuperCalc.java https://github.com/code-lyoko-modding/CodeLyokoMod/blob/master/lyoko/client/GuiSuperCalc.java EDIT: I ended up doing something different in the end
