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  1. Minecraft: Java Edition
  2. MC-6005

Redstone Blocks disabling Pistons

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    Details

    • Type: Bug
    • Status: Resolved
    • Resolution: Duplicate
    • Affects Version/s: Snapshot 13w01a, Snapshot 13w01b
    • Fix Version/s: None
    • Environment:
      Win 7, Java v.6 upd.35 build 1.6.0_35-b10
    • Confirmation Status:
      Unconfirmed
    • Game Mode:
      Creative

      Description

      Looks like if the Piston is trying to extend and retract at the same time, while receiving indirect signal (being BUD) from a moving Redstone Block and receieving block update, it creates two arms, both with proper hitboxes, one is extended, one is retracted. This piston won't work until you break the extended arm that preventing the retracted one from extending.

      It can be a duplication of MC-127, but this bug is NOT a directional one and has different causes. Also, the second arm is NOT a ghost-block, it has a hitbox and does not dissapear after reloading the world.

      The little useless (is it? :]) contraption in the first screenshot extends all upper pistons consecutively by turning the lever on and retracts all of them at once by turning it off. The lower line of pistons works as BUDs and updates itself by moving wool blocks. Lower pistons receive indirect power from redstone blocks above.
      After the first retraction second piston in the lower line retracts and extends very fast and produce this bug.

      Also, this line of pistons can be continued, causing bug on all of the lower ones, except the first one, but not always.

      Another way of reproduction found by Rlizeify (see the second picture). Somehow the repeaters are crucial

        Attachments

        1. howto.png
          howto.png
          408 kB
        2. howto2.png
          howto2.png
          380 kB
        3. piston.png
          piston.png
          141 kB

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              • Assignee:
                Unassigned
                Reporter:
                flasheek Flasheek
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                Dates

                • Created:
                  Updated:
                  Resolved: