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MC-195337

An unexpected error occurs when a player teleports to the dimension that contains the entity with the same UUID as the player

The bug

When a player teleports to the dimension that contains the entity with the same UUID as the player, repeated fatal errors occur.

How to reproduce

  1. /execute in minecraft:overworld run teleport 0 0 0
  2. /execute in minecraft:the_nether run forceload add 0 0
  3. /execute in minecraft:the_nether run summon minecraft:item_frame 0 0 0 {UUID: α, Fixed: true}

    (Replace α with the player's UUID)

  4. /execute in minecraft:the_nether run teleport 0 0 0

    An unexpected error occurred trying to execute that command(class bed cannot be cast to class aaw (bed and aaw are in unnamed module of loader 'app'))

Linked issues

Comments 5

SunCat

Can reproduce the freezing, can't reproduce the crash afterwards - using /data can see that the uuid of the player and the item frame match

ampolive

Can confirm in 1.17.1.

ampolive

This also triggers MC-227537, upon inspecting the logs.

ampolive

Can confirm in 21w39a.

ccJerrycc

in 1.21 it's freezing and spamming error logs

intsuc

(Unassigned)

Confirmed

Platform

Low

Entities

1.16.1, 20w29a, 1.16.2 Pre-release 1, 1.16.2, 1.16.3, ..., 21w37a, 21w39a, 1.19.1, 1.20.2, 1.21

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