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  1. Minecraft: Java Edition
  2. MC-143904

Adding a non-rail block to the "rails" block tag will crash the game when placing a minecart on it

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    Details

    • Type: Bug
    • Status: Resolved
    • Resolution: Fixed
    • Affects Version/s: Minecraft 19w06a, Minecraft 19w13b, 1.14.4, 19w44a, 20w11a
    • Fix Version/s: 20w18a
    • Labels:
      None
    • Confirmation Status:
      Confirmed
    • Category:
      Crash

      Description

      Adding any block to the "blocks/rails" tag will crash the game when you try to use a minecart item on the block. Judging by the decompiled code I think it will also crash when a minecart entity goes near to a block with that tag, or when you try to place a normal rail next to the block.

       

      I've attached an example datapack that will crash when using a minecart on a stone slab.

        Attachments

          Issue Links

          is duplicated by

          Bug - A problem which impairs or prevents the functions of the product. MC-132106 Placing a minecart on a block added to #minecraft:rails via data pack corrupts world

          • Resolved
          relates to

          Bug - A problem which impairs or prevents the functions of the product. MC-177951 Game crashes when fire starters are used on a non-campfire in the #campfires tag

          • Resolved

            Activity

              People

              Assignee:
              cojomax99 [Mojang] Cory Scheviak
              Reporter:
              AlexIIL AlexIIL
              Votes:
              3 Vote for this issue
              Watchers:
              4 Start watching this issue

                Dates

                Created:
                Updated:
                Resolved:
                CHK: