promotional bannermobile promotional banner

Legiao

A massive multiplayer-ready modpack blending high-tech automation, deep arcane magic, and challenging RPG exploration.

File Details

Legiao 1.6.0

  • R
  • Jan 5, 2026
  • 2.37 MB
  • 234
  • 1.21.1
  • NeoForge

File Name

DEV-NEOFORGE-LEGIAO-160.zip

Supported Versions

  • 1.21.1

🚑 Legião v1.6.0 Hotfix is Live!

This is a critical update addressing the IndexOutOfBoundsException crash that occurred during world generation in version 1.5.0.

🛠️ The Fix

We identified a thread-safety conflict between C2ME (Concurrent Chunk Management Engine) and Feature Recycler.

  • C2ME attempts to read/write biome features using multiple threads for maximum performance.
  • Feature Recycler attempts to modify these lists in real-time to prevent potential loops.
  • Result: This race condition caused the game to crash when generating biomes from the [Let's Do] suite.

Solution: We have removed Feature Recycler. Extensive testing confirms that removing this mod resolves the conflict, allowing C2ME to handle world generation correctly and efficiently without crashes.

➖ Removed

  • Feature Recycler (Caused java.lang.IndexOutOfBoundsException with C2ME).
  • Lake Features Fix (Another crash problem)

✅ Status

  • World Generation: FIXED. You can now create new worlds safely.
  • Performance: C2ME remains active! You will still enjoy multi-threaded chunk generation and fast loading times for Distant Horizons.
  • Biomes: All [Let's Do] biomes (Meadow, BloomingNature, etc.) are generating correctly.

⚠️ Recommendation: Update immediately if you were unable to create a world in v1.5.0.