I play Minecraft Java Version 15.1.1 on a good-specs PC. I've been trying to figure out how to use command blocks but I don't know what keeps going wrong. I'm putting the Command Block well and good on the ground, I've used all kinds of levers, buttons, pressure plates to activate it.

I was trying to build a house and when I activate it, it just summons a column of sand blocks for about 5 secs then stops.


The command that you linked is for a different version of Minecraft. Since commands can change between versions, that command will not work anymore. I would recommend finding a new command for your version. It is possible to reword the command, but it would require a lot of work.

  • try moving the " ~ ~1 ~ " from the start of the command to the end. It may fix it. – OK_Diamond Jun 26 '20 at 14:49
  • To the end, do you mean after {id:falling_block,Block:redstone_block,Time:1} ? – Akif_614 Jun 26 '20 at 14:55

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