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  1. Minecraft: Java Edition
  2. MC-171017

Nether fortresses failing to generate

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    Details

    • Type: Bug
    • Status: Resolved
    • Resolution: Works As Intended
    • Affects Version/s: 20w06a, 20w09a, 20w15a, 20w16a, 20w17a
    • Fix Version/s: None
    • Confirmation Status:
      Confirmed
    • Category:
      Structures, World generation
    • Mojang Priority:
      Important

      Description

      When comparing identical seeds between versions it would appear that the general features (caves, plateaus, lakes) of the nether dimension are very similar, and that for nether fortresses that do spawn, they spawn in exactly the same way with exactly the same shape in exactly the same spot as in 1.15.2.

      Yet it would appear that many fortresses are failing to generate.

      When testing in seed -8263492127909406043, the fortress at 587 70 984 spawns in the same place with the same rooms and the same hallways leading out. Essentially an identical fortress. Yet the fortress that is found at 903 68 630 in 1.15.2 does not spawn in 20w06a. In fact that fortress has 2 neighbours in the same lava lake to its north and south which also fail to spawn in the snapshot.

      Before this point, those fortresses properly generate identically in all versions from at least 1.11.2 to 1.15.2

      Thus potentially looking at a massive reduction in the number of fortresses that generate.

      How to reproduce

      1. Create a new world with the following seed
        1894983001
      2. Teleport to the nether using this command:
        /execute in minecraft:the_nether run tp @s 3314.70 105.35 -4676.21 273.45 82.50 

        There is no fortress here, unlike in 1.15.2

        Attachments

        1. drthfh.png
          drthfh.png
          4.61 MB
        2. fortressverification.png
          fortressverification.png
          3.24 MB
        3. qq_1_1.15.2.png
          qq_1_1.15.2.png
          239 kB
        4. qq_4_1.16.png
          qq_4_1.16.png
          625 kB
        5. qq_5_20w16a.png
          qq_5_20w16a.png
          681 kB

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              People

              Assignee:
              cojomax99 [Mojang] Cory Scheviak
              Reporter:
              Sicarine Hristo Netchev
              Votes:
              19 Vote for this issue
              Watchers:
              10 Start watching this issue

                Dates

                Created:
                Updated:
                Resolved:
                CHK: