Sable Unloading Fix

Large Sable ships stop disappearing

The problem

Sable unloads a ship the moment any chunk column its bounding box touches falls outside the server's simulation distance. A ship bigger than that distance can therefore never stay loaded.

Config

config/sableunloadingfix-common.toml

keepPartiallyLoadedSubLevels default true The feature itself. Turning it off restores stock Sable behaviour and disables everything below.

physicsInNonTickingChunks default true Build terrain collision for the parts of a ship hanging over chunks that are loaded but outside the simulation distance. Costs no extra chunk loading. Those chunks are already in memory and it is what stops a ship from clipping through terrain. Turn off for the absolute minimum overhead.

forceLoadSubLevelChunks default false Also force-load the chunks a ship overlaps, so it is simulated against real terrain even beyond view distance. Chunks are requested asynchronously and release themselves once no ship needs them, but they do tick while held, that costs TPS. Off unless you want it.

Requirements

• Minecraft 1.21.1, NeoForge
• Sable 1.2.2 or newer