General Info

• I didn't add any mods
• I can reproduce this issue consistently in single-player
• I can reproduce this issue consistently in multi-player
• I have searched for this issue previously and it was either (1) not previously reported, or (2) previously fixed and I am having the same problem.
• I am crashing and can provide my crash report(s)
• I am using the latest version of the modpack

Your launcher

Curseforge

Modpack version

2.5a

Describe your issue

So I'll load up a world in superflat with no structures, and the world will load normally. No matter how far I travel, it remains flat and full of slimes. But the moment I save and exit, then re-enter the game, the sky goes dark and if I run far enough, the world starts loading in the biomes like it normally does.

Steps to reproduce the issue

1. Create a superflat/single-biome world.
2. Save and quit
3. Re-open the save
4. Travel outside of whatever was loaded on the initial world spawn

Additional Information

I tried to do the same thing with a single biome deep dark world, and again, save/exiting then re-entering caused natural world generation to re-establish itself. Really makes challenge runs of this modpack quite difficult.

If a specific mod is doing this, that'd be great to know so I can remove it.

Do not click on that, mediafire links are floating around that have trojans in them

And what will that do?

This is still happening for me, but for amplified world type too.