sable fix mod
by finkkk
Sable Fix Mod is a NeoForge 1.21.1 server-side compatibility fix that addresses item and block duplication during Sable's physics conversion.
What it does
Sable converts blocks into physics assemblies and back, and during those conversions some inventories and attached blocks could be copied rather than moved. This mod patches that process so the original source position is cleared and the moved block keeps its contents only once. Containers in the vanilla style, along with NeoForge IItemHandler capabilities, directional item handlers, and containers filled from loot tables, are all covered.
The fix is a server-side bug fix: dedicated servers only need the server installation, while single-player worlds need it installed in the client instance as well. Its compatibility features are enabled only when the corresponding mods are present, and Create and Sophisticated Backpacks are optional dependencies that add their own handling. Sable is the required dependency. Options are enabled by default, and restarting the game or server after changing the configuration is recommended. The mod is open source under the MIT License and is published for NeoForge 1.21.1 only, with version 1.1.0 dated 2026-07-22.
Key features
Item handler duplication fix
Stops inventories moved by Sable from being duplicated, covering vanilla containers and NeoForge item handlers.
Attached block cleanup
When Sable restores redstone dust, rails, torches, buttons, levers, or pressure plates, the fix stops those blocks from releasing surplus items.
Table cloth item lists
Stops Create's table cloth block entity from keeping a second manual item list that causes duplicated items.
Sophisticated Backpacks UUID data
Tracks Sophisticated Backpacks by UUID in saved data so a moved backpack keeps its contents without copies appearing.
Compatibility
Latest build for each game version and loader.
Only full game releases are shown. This mod publishes no snapshot builds.
Requirements
Dependencies declared by the latest file for each loader.
Required 1
Use cases
Who it’s for: Server owners and players who run Sable on NeoForge 1.21.1 and see items or blocks duplicated after building physics assemblies.
How it compares
Sable VMP Compatibility is a NeoForge 1.21.1 mod for client and server, under the MIT License, and it is not open source. Sable & Immersive Engineering Compat is also for client and server on NeoForge 1.21.1 under the MIT License, and it is open source, so its code can be read. Jade Sable Compat is client-side only on NeoForge 1.21.1 and is open source.
| Mod | Loaders | Game versions | Environment | Updated |
|---|---|---|---|---|
| sable fix mod | NeoForge | 1.21.1 | Server-side only | 2026-07-22 |
| Sable VMP Compatibility | NeoForge | 1.21.1 | Client and server | 2026-07-24 |
| Sable & Immersive Engineering Compat | NeoForge | 1.21.1 | Client and server | 2026-07-31 |
| Jade Sable Compat | NeoForge | 1.21.1 | Client-side only | 2026-08-19 |
Questions
Does Sable Fix Mod need Sable installed?
Do dedicated servers need this mod on the client side?
Does the mod require Create or Sophisticated Backpacks?
In the catalog
sable fix mod is one of 36,990 Utility mods on ModsFinder, and one of 13,477 Utility mods for NeoForge. 32,366 mods support Minecraft 1.21.1.
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What the author says
Sable Fix Mod is a server-side compatibility and bug-fix mod for Minecraft 1.21.1 / NeoForge, designed to fix item duplication and block duplication issues that may occur during Sable's physics assembly, conversion, and de-physicalization processes. Sable Fix Mod 是一个面向 Minecraft 1.21.1 / NeoForge 的服务端兼容与漏洞修复模组，专门处理…
Official listing
- Modrinth page
- modrinth.com/mod/sable-fix-mod
- Owner
- finkkk
- Published
- 2026-07-22
- Updated on Modrinth
- 2026-07-22
- Facts verified
- 2026-10-15