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  1. Minecraft: Java Edition
  2. MC-167917

Using /clone with chain command blocks can hang the server

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    Details

    • Type: Bug
    • Status: Resolved
    • Resolution: Works As Intended
    • Affects Version/s: 1.15
    • Fix Version/s: None
    • Labels:
      None
    • Confirmation Status:
      Unconfirmed
    • Category:
      (Unassigned)

      Description

      Using the /clone command to continuously teleport a chain command block in front of the execution chain can cause the server to hang - e.g. /clone ~-1 ~ ~ ~ ~ ~ ~ ~ ~ replace move in an east-facing command block.

      Steps to reproduce: https://i.selic.re/chain-loop.mp4

      I suggest adding a limit on per-tick execution rather than removing this behaviour altogether, as it may be useful in non-exploit scenarios (such as custom worldgen). Another solution would be to delay the processing of newly cloned blocks that are in unloaded chunks.

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            Assignee:
            Unassigned Unassigned
            Reporter:
            hyperpony Selicre
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              Updated:
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