[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

Download this end dimension file:

[media]

Create a new world with seed 1452395943320050265
Close the world
Open the world save folder and replace the DIM1 folder with the one above
Join the world
Build an end portal and enter the end
→ There should be 16 end gateways
Summon and defeat the ender dragon
→ ✔ A 17th end gateway will appear
Summon and defeat the ender dragon again
→ ❌ No new end gateway will appear
Reload the world
Summon and defeat the ender dragon yet again
→ ✔ An 18th end gateway will appear

Linked issues

is duplicated by 8

MC-167300 Final end gateway not generating Resolved

MC-177485 Missing End Gateways Resolved

MC-216692 end gateways not generating after dragon fight Resolved

MC-262344 End city gateway not spawning Resolved

MC-262345 Ender city gateway not spawning Resolved

3 more links

relates to 2

MC-105080 Ender Dragon is respawned if all Exit End Portal blocks are removed / legacy scanning is done for worlds with new dragon fight Resolved

MC-184482 End Gateways don't generate after defeating the ender dragon Resolved

testing discovered 1

MC-171801 The fog in the end is too dense causing distant blocks to become dark while an ender dragon is in the world Open

Attachments

DIM1.zip

Comments 19

violine1101 2020-02-10T14:31:00Z

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

Please attach the affected (zipped) world file. If the file size is too large, please upload it somewhere else and then link to it here.

_{This issue has been temporarily closed as}_{Awaiting Response}_{. Once the requested information has been delivered, the report will be reopened automatically.}

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Ruser 2020-02-10T14:34:35Z

Hello, thanks for the fast reply.

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

violine1101 2020-02-10T14:47:00Z

Only the end dimension sould suffice.

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

Ruser 2020-02-10T14:50:56Z

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.

violine1101 2020-02-10T15:37:13Z

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

Ruser 2020-02-10T15:48:36Z

Thanks for testing and letting me know! 🙂
It will last for 30 days. Making it permanent would require a premium account on that website.

Ruser 2020-02-10T16:20:45Z

Worked like a charm!
Thanks for the help! Hopefully, this helps others. (Make sure to always "/reload" the world EVERYTIME you defeat the dragon)

violine1101 2020-02-10T17:53:27Z

Glad to help! No worries about the world download, I removed all the chunks outside of the main island and reuploaded it here, so this issue can be reproduced using that world file.

Hakujin Nikon 2020-04-05T16:33:43Z

Hi!

So I downloaded the DIM1.zip and inserted it to my minecraft world, but when I try to summon the ender dragon with the end crystals nothing happens. And when I use the summon ender dragon command and kill that ender dragon no new end gateway spawns, not even when I reload the chunks. Is there something else that I need to do to fix this bug?

Chris Brooks 2020-06-11T02:56:16Z

I am having this issue as well. world was made in 20w20b. No end gateway generate at all. 1.16 Pre3.

I have tried deleting the end and regenerating it, nothing.

Dragon didn't originally spawn when entering the end.
Spawned with /summon
Killed Dragon - No gateway.
Rebooted server
Spawned with end crystals x2
No Gateways
Killed the dragon 3 times. No gateway.

Seed: -669274674

Joseph Wyne 2020-06-13T18:23:10Z

I've had the same issue, FIRST gateway is never created. seed -3809441272346658764

Even when recreating DIM1 in 1.16 pre-5 and killing ender dragon, no first or second gateway is ever created after killing respawning with and killing again.

Is this possibly due to coordinates for the first few gateways in the end center island not being above solid blocks?

e.g.

x:96 y:75 z:0

x:91 y:75 z:29

x:77 y:75 z:56

x:56 y:75 z:77

x:29 y:75 z:91

x:0 y:75 z:96

x:-29 y:75 z:91

x:-56 y:75 z:77

x:-77 y:75 z:56

x:-91 y:75 z:29

x:-96 y:75 z:0

x:-91 y:75 z:-29

x:-77 y:75 z:-56

x:-56 y:75 z:-77

x:-29 y:75 z:-91

x:0 y:75 z:-96

x:29 y:75 z:-91

x:56 y:75 z:-77

x:77 y:75 z:-56

x:91 y:75 z:-29

are possibly above void for the first few generated from this seed.

David Harmon 2021-07-01T23:49:57Z

I am seeing a different sort of "end gateways fail to generate". I originally killed the dragon in 1.16, and went off to explore the islands, where I found several additional "return" gateways scattered around the islands. The wiki indicates that this is the expected situation. I later respawned and killed the dragon again, but when I explored past the second end gateway, it was in 1.17.... and despite having traversed well over 1000 blocks in two directions, the only end gateway I've seen there is the one I came in by.

ETA: Joseph Wyne: In the past, those end gateways have been perfectly happy to spawn over the void.

Baboobraz 2023-05-11T12:15:09Z

I'm having the same issue one an older world I made back in 1.14.2. I killed the ender dragon like 5 times earlier today, but I only have 7 end gateways total, and my statistics say I've killed 14 dragons (which is actually off, I've killed more- the world corrupted twice so that may be a factor). I'm playing in 1.19.4 on the seed 1939338204 btw, not sure if that has an effect. Also important to note I'm using optifine and have used a mod before on the world that fixed some bugs with bee ai (I'm not currently using that though), but other than that it is vanilla.
Edit: I know for a fact it said 14 dragons earlier today but now after reloading it says 12. Weird

NguyenFranky 2023-06-13T06:33:45Z

Related to MC-260411

Baboobraz 2023-07-05T03:31:37Z

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)

[Mod] turbo 2023-11-26T00:13:24Z

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 2023-12-13T04:37:34Z

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.

Unpixelled 2024-03-09T05:16:27Z

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.

Req 2024-03-17T20:37:18Z

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.