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  1. Minecraft: Java Edition
  2. MC-132106

Placing a minecart on a block added to #minecraft:rails via data pack corrupts world

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    • Icon: Bug Bug
    • Resolution: Duplicate
    • None
    • Minecraft 1.13-pre4, Minecraft 1.13, Minecraft 18w30b, Minecraft 1.13.1, Minecraft 1.14 Pre-Release 1, Minecraft 1.14, Minecraft 1.14.1 Pre-Release 2, Minecraft 1.14.2 Pre-Release 2, Minecraft 1.14.3 Pre-Release 3, 19w39a, 20w14a, 20w17a
    • Confirmed
    • (Unassigned)

      1. Apply data pack
      2. Shift-click with minecart on repeater.

      Result:

      (18w30b) crash-2018-07-31_22.31.16-server.txt
      Description: Ticking entity

java.lang.ClassCastException: bgt cannot be cast to bci
	at apf.j(SourceFile:640)
	at apf.b(SourceFile:386)
	at apf.R_(SourceFile:307)
	at axv.a(SourceFile:1202)
	at tc.a(SourceFile:577)
	at axv.g(SourceFile:1177)
	at axv.k(SourceFile:1083)
	at axv$$Lambda$1616/505433395.test(Unknown Source)
	at xm.a(SourceFile:209)
	at axv.l(SourceFile:1070)
	at tc.l(SourceFile:493)
	at net.minecraft.server.MinecraftServer.b(SourceFile:736)
	at net.minecraft.server.MinecraftServer.a(SourceFile:661)
	at dga.a(SourceFile:159)
	at net.minecraft.server.MinecraftServer.run(SourceFile:564)
	at java.lang.Thread.run(Thread.java:745)

      This error happens every time when trying to open the world afterwards.
      Removing the pack from the datapacks folder fixes the world.

        1. crash-2018-06-26_16.06.26-server.txt
          3 kB
        2. crash-2018-07-31_22.31.16-server.txt
          4 kB
        3. packname.zip
          1 kB

            Unassigned Unassigned
            FaRo1 Fabian Röling
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              Created:
              Updated:
              Resolved:
              CHK: