[BUG]

[ZenMasterMarci]

Before reporting, make sure your problem isn't caused by the game running out of RAM and you have read the installation guide carefully.
If the game crashes to your desktop without showing a crash screen it's a RAM issue. Don't submit this kind of issue. Please view the installation guide for how to solve this issue.
If this is not the case check the checkbox below by replacing the space between brackets with an 'x'.

• [x ] Yes, I'm sure this problem isn't because my game ran out of RAM.

Describe the bug
Title says it all, my main world's difficulty changed to peaceful.

I was messing around in a test world, and set that world's difficulty to peaceful. When I got back to my main world, it's difficulty was peaceful too, and locked since I was playing on expert mode.

Most DEFINIETLY not a RAM issue, I can tell that, I have no idea how it happened and not sure whether the description above caused it, and that's really it. I know a potential way to solve it which is to make a server with the world, set the difficulty with console and copy that world back to the saves, but I tried making a server with the recommended java argument and the game decided to just not work.

To Reproduce
I couldn't reproduce it yet

Expected behavior
Bruh

Screenshots
Wouldn't really help. It's literally set on peaceful.

Crash reports or logs
It doesn't crash

Details
Please fill out the blanks below:
Modpack Version: (latest , 1.35.2.118.1 )
Did you add or remove mods? ( no )
Did you edit any config or script? ( no)
Using shaders? [Write 'Default' if you are using default shader, if you are not using the default shader please write the name of the shader you are using.] (default )
Singleplayer, LAN game or server pack? ( singleplayer )

Additional context
Nothing more to add