WorldWeaver Neoforge

• Fixed a crash when creating/opening worlds caused by NbtAccounterException (NBT size limit)
• Increased world-config NBT read limit from 2 MB to 16 MB
• Added safe handling for world NBT read errors to prevent fatal client crashes
• Improved compatibility with large biome/TerraBlender setups

• Fixed a crash when creating/opening worlds caused by NbtAccounterException (NBT size limit)
• Increased world-config NBT read limit from 2 MB to 16 MB
• Added safe handling for world NBT read errors to prevent fatal client crashes
• Improved compatibility with large biome/TerraBlender setups (including Nature’s Spirit)

• Port to 1.21.11

Fixes

• Fixed an issue where TerraBlender biomes from other mods (for example, Regions Unexplored) could generate with incorrect placement/scale (too small, fragmented, or misplaced).
• WorldWeaver now preserves external biome placement for non-Wover biomes instead of remapping them through Wover biome pickers.
• Fixed Enderscape + TerraBlender + BetterEnd compatibility in The End:

1. Enderscape biomes now appear correctly (instead of mostly void biomes only).
2. Enderscape surface/substrate rules are now preserved during Wover surface rule rebuilding.
3. This restores proper Enderscape ground blocks (e.g. veiled/celestial/corrupt surfaces), allowing trees and large vegetation to generate normally.

Technical Notes

• Improved TerraBlender End biome category import handling to avoid category overlap conflicts (which could push biomes into the wrong placement bucket).
• Re-injected Enderscape surface rules when Enderscape biomes are present in the End, so biome-specific vegetation placement conditions can pass.

Important

• Existing chunks will not be retroactively fixed.
• Create a new world or explore new chunks to see the full effect of these changes.

• Added compatibility with the TerraBlender library and mods that use it (Luminous Nether, Garden of the Dead, Biomes O' Plenty, Oh The Biomes We've Gone, etc.)
• Extend amplified nether top density fade from Y128 to Y256 (thanks Starior)