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  1. Minecraft: Java Edition
  2. MC-8340

Comparators do not update their state when blocking or unblocking a chest with a block on top

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    • Icon: Bug Bug
    • Resolution: Unresolved
    • Snapshot 13w05a
    • Snapshot 13w04a, Snapshot 13w07a, Snapshot 13w10b, Minecraft 1.5, Snapshot 13w11a, Minecraft 1.6.1, Minecraft 1.6.2, Minecraft 1.7.4, Minecraft 14w02c, Minecraft 14w03b, Minecraft 14w04a, Minecraft 14w04b, Minecraft 14w05a, Minecraft 14w05b, Minecraft 1.8.1, Minecraft 1.8.2-pre6, Minecraft 15w40b, Minecraft 1.10.2, Minecraft 16w38a, Minecraft 1.11.2, Minecraft 1.13-pre6, Minecraft 1.13-pre7, 1.15.2, 20w21a, 1.16.1, 1.16.2 Pre-release 1, 1.16.2 Release Candidate 1, 1.16.2, 1.16.3 Release Candidate 1, 1.16.3, 20w48a, 1.20.4
    • None
    • Confirmed
    • Block states, Redstone
    • Low
    • Platform

      I found this bug where comparators dont output any signal from a chest, when the chest has a block on top. I'm not sure if it's intended, but I thought I might as well post it. It allows for a cool clock like in the third screenshot, However the clock creates major lag spikes on servers after 1 minute or so, more lag than it should.
      Since I don't seem to be able to upload screenshots, I uploaded them to imgur:
      http://imgur.com/advoWtp
      http://imgur.com/Fyh17O0
      http://imgur.com/9q6GdZb

        1. Without Block.jpg
          Without Block.jpg
          60 kB
        2. With Block.jpg
          With Block.jpg
          67 kB
        3. Chest not empty Blocked.png
          Chest not empty Blocked.png
          525 kB
        4. Chest not empty.png
          Chest not empty.png
          592 kB
        5. 2013-02-06_00.23.02.png
          2013-02-06_00.23.02.png
          397 kB

            Unassigned Unassigned
            dicotheredstoner DicoTheRedstoner
            Votes:
            20 Vote for this issue
            Watchers:
            10 Start watching this issue

              Created:
              Updated:
              CHK: