My server spawn biomes are all messed up in a square around the spawn chunks but everything outside is fine.

[DereC4]

Hey so when I got on my server all the biomes in spawn were messed up (as if they used another seed) but there was a clear division eventually that made a box around the spawn area. Is there any way to tell why this is happening? 

Attached is an image, as you can see the desert area around spawn is all Mountains and the Savanna has also become Mountains for some reason. 

[CoolProgrammer]

4 hours ago, DereC4 said:

Hey so when I got on my server all the biomes in spawn were messed up (as if they used another seed) but there was a clear division eventually that made a box around the spawn area. Is there any way to tell why this is happening? 

Attached is an image, as you can see the desert area around spawn is all Mountains and the Savanna has also become Mountains for some reason. 

Do you have any plugins which might interfere with biomes, for example, WorldEdit?

Can you also check your world seed under Worlds tab?

Also, do check if you have a recent server backup under Backups tab.

[DereC4]

It's okay I isolated the incident to the caves and cliffs datapack and fixed the worlds on my own