Arcadia Patch Create 1.4.2

Conservative crash-fix release for Create 1.21.1.

Fixed

• Fixed a server crash that could happen when loading chunks containing Create stationary contraptions.
• Added a defensive guard for invalid Create continuous collision manifolds where the collision axis can be unexpectedly null.
• Added defensive validation for corrupted or unreadable contraption NBT before Create tries to rebuild the contraption state.
• Invalid contraption entities are now discarded during load instead of crashing the server tick.

Technical Notes

• This patch targets Create collision and contraption loading only.
• It does not disable contraption collision globally.
• It does not wrap the whole server tick in a broad try/catch.
• Valid contraptions should keep their normal behavior.
• If a contraption is corrupted enough to be unreadable, it may be removed to keep the server online.

Compatibility

• Minecraft: 1.21.1
• Create: 6.0.10 target
• Loader: NeoForge