Uploaded image for project: 'Minecraft: Java Edition'
  1. Minecraft: Java Edition
  2. MC-270603

Crash updating world: ClassCastException: RegularImmutableList cannot be cast to class com.mojang.datafixers.util.Pair

XMLWordPrintable

    • Icon: Bug Bug
    • Resolution: Fixed
    • 1.20.5 Pre-Release 2
    • 1.20.5 Pre-Release 1
    • None
    • Confirmed
    • Crash, Datafixer
    • Very Important
    • Platform

      Attached is a world created freshly in 1.8.9 that crashes my game when attempting to open it in the prerelease. I've attached the crash report, but don't have much more information.

        1. 2024-04-10_15-26-34_eight two.zip
          2.13 MB
        2. crash-2024-04-10_15.20.47-server.txt
          27 kB
        3. deobf_crash-2024-04-10_15.20.47-server.txt
          32 kB
        4. world.zip
          2.15 MB

            boq [Mojang] Bartosz Bok
            tryashtar [Mod] tryashtar
            Votes:
            2 Vote for this issue
            Watchers:
            1 Start watching this issue

              Created:
              Updated:
              Resolved:
              CHK: