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  1. Minecraft: Java Edition
  2. MC-166879

Incomplete nether portal at y=254 in some cases

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    Details

    • Type: Bug
    • Status: Open
    • Resolution: Unresolved
    • Affects Version/s: 1.14.4, 1.15 Pre-release 3, 1.15.1, 1.15.2 Pre-Release 1, 1.15.2, 20w06a
    • Fix Version/s: None
    • Labels:
      None
    • Confirmation Status:
      Confirmed
    • Category:
      (Unassigned)

      Description

      The bug

      Nether portals always spawn on the highest possible block but this can cause incomplete nether portals. When there is water below and a layer of blocks at y=254, an incomplete portal (as seen in this screenshot.) will generate at y=254 when there is plenty of room to spawn a complete portal below the layer. When the layer is removed, it does spawn a complete portal.

      How to reproduce

      1. Use this preset
        100*minecraft:water,154*minecraft:air,minecraft:grass_block;minecraft:ocean
        
      2. Go to the nether (/execute in minecraft:the_nether run teleport @s 0 100 0)
      3. Set a nether portal (/setblock ~ ~ ~ minecraft:nether_portal) and go through it
        Incomplete portal is generated despite having room below to spawn in the air

        Attachments

        1. unknown.png
          unknown.png
          87 kB
        2. unknowns.png
          unknowns.png
          37 kB

          Issue Links

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              People

              Assignee:
              grum [Mojang] Grum (Erik Broes)
              Reporter:
              Oval Oval
              Votes:
              8 Vote for this issue
              Watchers:
              5 Start watching this issue

                Dates

                Created:
                Updated:
                CHK: