Single and Realms have different biomes in the same world

The biome is different between the Realms world and the world where it was downloaded, even at the same coordinates.

When I checked the previous backup, the biome was the same as that of the single world.

So I think there is no problem with the world itself, but with Realms.

There are several data packs in the world, but I don't think anything will change the biome.

 

I noticed this problem when trying to mark the biome boundaries.

In the realms world, the biome changed depending on the Y coordinate.