The Bug:
The end obsidian platform resets every time entities go through the end portal, which can cause blocks to be deleted.
This notably results in containers like chests or shulker boxes which might contain valuable items within them being deleted.
Steps to Reproduce:
Enter the end by using an end portal.
Place some blocks on top of and around the obsidian platform that you spawn on.
Take note of the blocks that you've just placed.
Run the "/kill" command.
Enter the end once again and attempt to locate the blocks you just previously placed.
Take note as to whether or not the end obsidian platform resets every time entities go through the end portal, which can cause blocks to be deleted.
Observed Behavior:
The end obsidian platform resets every time entities go through the end portal, which can cause blocks to be deleted.
Expected Behavior:
Blocks on the end obsidian platform would not be deleted every time an entity goes through the end portal.
Code Analysis:
Code analysis by @unknown can be found below.
The following is based on a decompiled version of Minecraft 1.18.1 using MCP-Reborn.
net.minecraft.world.entity.Entity.java
public abstract class Entity implements Nameable, EntityAccess, CommandSource {
...
public Entity changeDimension(ServerLevel $sl) {
if (this.level instanceof ServerLevel && !this.isRemoved()) {
...
if (portalinfo == null) {
return null;
} else {
...
if (entity != null) {
...
if ($sl.dimension() == Level.END) {
ServerLevel.makeObsidianPlatform($sl);
}
}
...If we look at the above class, we can see that when an entity enters the end portal, the makeObsidianPlatform() method is called. This method completely regenerates the end obsidian platform (including the space above), causing blocks previously placed at its position to be deleted.
Linked issues
is duplicated by 19
MC-1314
Obsidian Generator In The End
Resolved
MC-4102
Chests dissapear if they are placed on the spawning platform in the End
Resolved
MC-29268
Blocks placed on end spawn platform disappear
Resolved
MC-32477
Chests vanish
Resolved
MC-155127
Chests on the End Spawn Plattform disappeared
Resolved
relates to 10
MC-273945
Unlike end portals, nether portals do not drop replaced blocks, which can result in major item loss
Open
MC-108605
Attached blocks on End platform sometimes drop
Open
MC-136525
Structure block destroy blocks instead of replacing blocks
Open
MCPE-182118
The end obsidian platform resets every time players go through the end portal, which can cause blocks to be deleted
Reopened
MC-160140
Shulker boxes on the obsidian platform are destroyed and do not drop when a player enters the End
Resolved
Attachments
Comments 37
If it didn't reset, then someone could fill it with blocks and when you went through, you'd suffocate.
Nether portals have a bit of space in them already so that can't happen with them.
Can reproduce in 1.21 Pre-1
EDIT: According to Kingbodgz' tweet (https://x.com/kingbdogz/status/1795823127362154962) this cannot be reproduced in 1.21 Pre-1
Avoma
Shugoh
Intended. The spawn platform and the air above it are reset each time someone enters the end.
Tip: Don't place your chests on it.