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  1. Minecraft: Java Edition
  2. MC-131327

Opaque blocks at the top of subchunks (chunk sections) do not increase the world height to the next subchunk

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    • Icon: Bug Bug
    • Resolution: Fixed
    • Minecraft 1.13-pre8, Minecraft 1.13
    • Minecraft 1.13-pre1, Minecraft 1.13-pre2, Minecraft 1.13-pre3, Minecraft 1.13-pre4, Minecraft 1.13-pre5, Minecraft 1.13-pre6, Minecraft 1.13-pre7, Minecraft 1.13-pre8
    • None
    • Confirmed

      How to reproduce

      1. Create a new superflat world with void preset
      2. Make it night time by running this: /time set midnight
      3. Fill a layer of stone at layer 63: /fill ~ 63 ~ ~20 63 ~20 stone
        → No hostile mobs are spawning
      4. Fill a layer of stone at any other layer: /fill ~ 30 ~ ~20 30 ~20 stone
        → Mobs are spawning correctly on this layer

      Note: This bug was introduced in 18w19a

        1. 2018-07-13_08.22.44.png
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        2. javaw_2018-06-14_18-21-11.png
          424 kB
          [Helper] Misode
        3. javaw_2018-06-15_14-08-33.png
          712 kB
          [Helper] Misode

            ProfMobius ProfMobius (Thomas Guimbretiere)
            Misoloo [Helper] Misode
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              Created:
              Updated:
              Resolved:
              CHK: