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  1. Minecraft (Bedrock codebase)
  2. MCPE-37479

Command blocks fail to recognize their power state changed for 3 ticks

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    • Icon: Bug Bug
    • Resolution: Unresolved
    • None
    • 1.20.20.20 Preview, 1.13.0.1 Beta, 1.18.10.26 Beta, 1.17.40.23 Beta, 1.17.40.21 Beta, 1.17.20.20 Beta, 1.17.0.50 Beta, 1.16.210.56 Beta, 1.16.0.61 Beta, 1.16.0.60 Beta, 1.16.0.51 Beta, 1.14.0.2 Beta, 1.13.0.9 Beta, 1.12.0.11 Beta, 1.12.0.2 Beta, 1.11.0.10 Beta, 1.9.0.0 Beta, 1.6.0, 1.7.0.5 Beta, 1.7.1, 1.7.0, 1.8.1, 1.9.0, 1.10.0, 1.14.0, 1.14.60 Hotfix, 1.16.100, 1.16.201 Hotfix, 1.17.2 Hotfix, 1.17.30, 1.17.32, 1.18.2 Hotfix, 1.18.31
    • None
    • Confirmed
    • Multiple
    • 89588 / 95402

      The bug

      When any command block receives power, three ticks pass before it finally runs its command. When a repeating command block loses power, it continues to run commands for three ticks!

      How to reproduce

      1. Place a repeating command block: /setblock ~ ~1 ~ air
      2. Place a chain command block following it: /say running
      3. Place a redstone block on top
        → After a three ticks delay, "running" is printed three times.

      Correct behavior: "running" should print once on the exact subsequent tick after the redstone block is placed.

        1. BEDROCK.mp4
          4.64 MB
          [Mod] tryashtar
        2. JAVA.mp4
          6.17 MB
          [Mod] tryashtar

            tryashtar [Mod] tryashtar
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              Created:
              Updated:
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