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

15th of Jan. note: Added 25w03a report

22nd of Jan. note: Added 25w04a report

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