mojira.dev
MC-171797

End gateways sometimes fail to generate in some worlds

The bug

In some worlds, after the ender dragon has been respawned and defeated once, after any further respawns, no new end gateways will spawn until the world is reloaded.

There also have been reports of end gateways not generating at all in some worlds.

To reproduce

  1. Download this end dimension file:

[media]
  1. Create a new world with seed 1452395943320050265

  2. Close the world

  3. Open the world save folder and replace the DIM1 folder with the one above

  4. Join the world

  5. Build an end portal and enter the end
    → There should be 16 end gateways

  6. Summon and defeat the ender dragon
    → ✔ A 17th end gateway will appear

  7. Summon and defeat the ender dragon again
    → ❌ No new end gateway will appear

  8. Reload the world

  9. Summon and defeat the ender dragon yet again
    → ✔ An 18th end gateway will appear

Linked issues

Attachments

Comments 19

We do not have enough information to find the cause of this issue.

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Hello, thanks for the fast reply.

Does it need to be the whole world or just the "end-world" file?

Only the end dimension sould suffice.

An additional question that might be crucial in finding the issue: What server software do you use?

https://easyupload.io/uecewg - There you go! 

Also, I use the "server.jar" file. It has been like that since like, ever. 

I'm also using the latest snapshot (20w06a) but this issue occurred before I converted it to the snapshot. 

Okay, I have found out that the very first time, a new end gateway is generated, however after that, the generation of any further end gateways will fail. Reloading the world / restarting the server allows for another end gateway to be generated. I was unable to reproduce the issue in a freshly generated world though.

How long will the download of your world's end DIM1 folder last? Would it be possible to make it permanent?

9 more comments

I've updated my survival world to 1.20 and I'm still experiencing this issue- they just never spawn for me. I have 7 even though I've killed at least 15 dragons (don't know exact amount cuz my statistics are wrong)

I can't reproduce this behavior in 1.20.3-pre2, an 18th and 19th End gateway is generating. Is this still an issue for anyone?

chris calverley

Yes, it's happening to me.  Created world in 1.16.  Have 3 gateways opened.  Today I killed dragon 3X in 1.20.2 with no new gateways opening.  Reloading didn't help.

This issue happened with me, I detailed it in MC-268655, I am currently playing in 1.20.4 and generated the world in 1.19+, I have the first gateway but no subsequent gateways.

Currently playing on a 1.20.2 world that was generated in 1.16 and having the same issue. No end gateways spawning even after reloading the world and ender dragon kill statistics shows only one kill.

Ruser

(Unassigned)

Confirmed

Platform

Low

Structures

1.15.2, 20w06a, 20w20b, 1.16.5, 1.19.4, 1.20.1, 1.20.4, 24w09a

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