Description: 

When creating a singleplayer world, upon generating it, the player is disconnected and is directed into the servers list

Expected Result:

Player is able to play into the newly created world

Observed Result:

Player is kicked from world and directed into servers list

(Edit: Added Steps to reproduce in order to reproduce upon mod's comments)

Steps to reproduce:

Note as of 8th of Novermber: Step 2 is optional though through my testing it seemed to make it more common

Step 1: Open the game

Step 2: Open a web browser simultaneously

Step 3: Creating a new world and exit it and delete it

Repeat Step 3 and the message should eventually pop-up

Important notes:

8th of Nov. note: I attached the report that appeared in the last few seconds of the video I linked in the comments

5th of Nov. note: Added some reports from November that correspond to version 24w44a

1) Singleplayer world was set to "Hard" difficulty, no experimental options were enabled and no gamerules were changed

2) The disconnect reports are as follow:

-disconnect-2024-10-01_22.41.42-client.txt (24 kB) is when creating a world and was kicked immediately after the percentage reached 100%

-disconnect-2024-10-01_22.42.04-client.txt (12 kB) is when attempting to re-enter the world and getting kicked again

After that I was able to re-enter normally, the world was deleted and then a new one was created with the same name and options:

-disconnect-2024-10-01_22.44.28-client.txt (36 kB) was the new world created and resulted in a disconnect

Since then I haven't attempted to re-enter the 2nd world created