ModsFinder

DEUF Refabricated

by ElocinDev

DEUF Refabricated is a server-side Fabric fix that stops entities from being spawned with duplicated UUIDs, which otherwise clutter the log and can crash a world.

FabricServer-side onlyMIT License1.18.2 – 1.21.3

What it does

The mod targets entities that receive the same unique identifier as another entity. Such duplicates produce repeated log messages and can lead to crashes. Only the server needs the mod to run, and players do not install it.

Fixes apply to entities as they spawn. A world that already contains duplicated entities keeps them, so those must be removed by hand. Entities spawned while the mod is installed are not duplicated. Modpack builders may include it so single-player worlds get the same protection.

Key features

  1. Unique entity identifiers

    Newly spawned entities are assigned identifiers that do not collide with existing ones.

  2. Less log spam

    Repeated warnings caused by duplicated entity identifiers are no longer written to the log.

  3. Crash prevention

    Worlds are protected from the crashes that duplicated identifiers can cause during play.

Compatibility

Latest build for each game version and loader.

1.21.x4 of 4 versions with builds
1.21.31.1.0
1.21.21.1.0
1.21.11.1.0
1.211.1.0
1.20.x7 of 7 versions with builds
1.20.61.1.0
1.20.51.1.0
1.20.41.1.0
1.20.31.1.0
1.20.21.1.0
1.20.11.1.0
1.201.1.0
1.19.x3 of 3 versions with builds
1.19.21.0.0
1.19.11.0.0
1.191.0.0
1.18.x1 of 1 version with builds
ReleaseBetaAlphaNot available

Only full game releases are shown. This mod publishes no snapshot builds.

Questions

Does DEUF Refabricated need to be installed on the client?

No. The mod is server-side only, so the server needs it and players can join without installing it.

Will the mod remove duplicated entities already in the world?

No. Fixes apply only on spawn, so existing duplicated entities must be removed manually.

More from ElocinDev

All projects
Necronomicon API1.17 – 1.21.3Iris/Oculus & GeckoLib Compat1.18.2 – 1.21You Shall Not Spawn!1.19 – 1.21.3Grass Overhaul1.17 – 1.21.1Boat Break Fix1.17 – 1.21.1Item Obliterator1.19 – 1.21.1

What the author says

DEUF Refabricated is a fabric port of the mod DEUF (Duplicated Entity UUID Fixer) by CAS-ual-TY. It fixes duped UUIDs, removing log spam and also fixing some crashes. This mod only needs to be present on the server to work. But it's recommended to be included in modpacks to fix these issues while on singleplayer.
ElocinDev, on the Modrinth page

Official listing

Owner
ElocinDev
Published
2023-11-23
Updated on Modrinth
2024-06-13
Facts verified
2026-10-15
Open on ModrinthCompare