Whenever playing singleplayer mode, I keep being booted out of the world with the message "Server Closed"

Started by Tellow on

Topic category: Help with MCreator software

Joined Oct 2021
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Whenever playing singleplayer mode, I keep being booted out of the world with the message "Server Closed"

NeoForge, 1.21.4, 2025.2

Screenclip of it: 
https://drive.google.com/file/d/1w8d-AfX3c8Y6S4ONkIryj4iGzqv3dafz/view?…

Anytime when loading the instance, I am able to only fly around in a world for so long before the game says that the "Server Closed, Back To Server List" and I am booted out from the world. This is on singleplayer, not the test server. I'm also unable to close the game itself after this happens; it only closes if I either close Mcreator altogether or click on the cancel gradle task button.

I'm working on a video right now and this issue is making it nigh impossible to progress after already putting tons of work into it.

Joined Jul 2022
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Maybe you could share the…
Wed, 09/03/2025 - 02:11

Maybe you could share the console logs when this happens?

Joined Oct 2021
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This is an excerpt from…
Wed, 09/03/2025 - 20:35

This is an excerpt from around when it happened just this time when I tested it.

[15:31:46] [Server thread/INFO] [minecraft/MinecraftServer]: Stopping server
[15:31:46] [Server thread/INFO] [minecraft/MinecraftServer]: Saving players
[15:31:46] [Server thread/INFO] [minecraft/ServerGamePacketListenerImpl]: Dev lost connection: Server closed
[15:31:46] [Server thread/INFO] [minecraft/MinecraftServer]: Dev left the game
[15:31:46] [Server thread/INFO] [minecraft/ServerCommonPacketListenerImpl]: Stopping singleplayer server as player logged out
[15:31:46] [Server thread/INFO] [minecraft/MinecraftServer]: Saving worlds

 

The bolded is where it seems to kick me off / shut the server down. This time I was just given a connection lost error message, which is a first; it's always just been server closed before hand. But here it still seems to suggest that the server itself closed.