I have a door and when the player clicks on a gui de door opens/closes. In my screen class I use door.toggleDoor(dls.getContainer().getTileEntity().getWorld(), dls.getContainer().getTileEntity().getPos(), true/false); The problem is that dls.getContainer().getTileEntity().getWorld() returns the client world, the client world does change and the door opens, but not on de server side so you can't go through it.Can someone please help?Sorry for my English