当我创建了多种无需控制器的多方块机器，我发现只能有一种多方块机器可以正常形成，其它的依旧需要控制器才能形成。多次重启测试，都是只有同一种生效。
When I created a variety of multi-block machines without controllers, I found that only one multi-block machine could be formed normally, and the others still needed controllers to form. Multiple reboot tests, all of which are only valid for the same kind.