It's an... ocean?

[Kamikaze_Bear47]

I found a strange world gen glitch that's super annoying. A biome that looks like extreme hills is actually ocean or deep ocean, yet it generates like a flat extreme hills (complete with lakes). It causes strange chunk glitches where one chunk will be thrust above the rest, creating a completely flat wall of stone and ores, and makes it so many mods I have don't work, specifically the ones that generate structures. It completely ruins the exploration experience. I would provide a screenshot if I could but for some reason when I click choose files and select the screenshot it says upload failed

[beefycomputer]

Do you have boimes o plenty mod with other world gen mods?

[Kamikaze_Bear47]

No

[LexManos]

We need more information. Exact Forge version, exact world info.

World seeds, coordinates, etc...

This is MOST likely the case when you load an existing world in a updated Minecraft version where the random generator has changed.

 

So, post your logs, post your seed, post your coords, and screenshots.