Mojira Archive
MC-132242

Upgrading enderman spawn egg causes chunk to regenerate

The bug

Enderman spawn eggs in the form of an item entity or in an item frame will cause the chunk its in to regenerate when upgrading from 1.12.2. Enderman spawn eggs in containers such as chests are not affected. Other spawn eggs also do not cause this issue.

This issue is not world specific, but a world from 1.12.2 is provided: MC-132242.zip

Exception

Partially omitted due to length

1.13-pre5: launcher_log.txt
[0630/195720:INFO:GameCallbacks.cpp(188)] game/com.mojang.datafixers.DataFixerUpper (Server thread) error Something went wrong upgrading!
java.lang.IllegalStateException: Named type name doesn't match: expected: block_name, got: block_state
	at com.mojang.datafixers.types.templates.Named$NamedType.write(Named.java:146)
...
	at com.mojang.datafixers.DataFixerUpper.update(DataFixerUpper.java:78)
	at hj.a(SourceFile:493)
	at bmt.b(SourceFile:98)
	at bmt.a(SourceFile:84)
	at bmt.a(SourceFile:120)
	at sw.g(SourceFile:92)
	at sw.b(SourceFile:114)
	at sw.a(SourceFile:150)
	at net.minecraft.server.MinecraftServer.g_(SourceFile:385)
	at dej.a(SourceFile:116)
	at dej.d(SourceFile:132)
	at net.minecraft.server.MinecraftServer.run(SourceFile:505)
	at java.lang.Thread.run(Thread.java:745)

[0630/195720:INFO:GameCallbacks.cpp(188)] game/bmt (Server thread) error Chunk file at 15,14 is missing level data, skipping

Fixed

Matthew James Riley

[Mojang] Georgii Gavrichev

2018-06-28, 04:40 PM

2020-08-14, 10:13 PM

2018-07-03, 03:21 PM

2

1

Confirmed

enderman, spawn_egg

Minecraft 1.13-pre4, Minecraft 1.13-pre5

Minecraft 1.13-pre6