YggdrasilSignatureFix
Some servers perform strict Yggdrasil signature validation when loading player skins. If that check fails — which can happen due to outdated or non-standard authentication setups — the server may refuse to render skins correctly, leaving players appearing with the default Steve or Alex model. Enabling this module bypasses the Authlib Yggdrasil signature check on the client side, which can restore missing skins in those situations.
The ForceSlimModel setting, enabled by default, tells the client to treat your skin as using the slim (Alex-style) arm model. This is useful when the server cannot determine your skin variant from the session data and would otherwise fall back to the wide (Steve-style) arms even if your account uses a slim skin.
This module is intended for use on servers where skin loading is broken due to signature validation issues. It has no effect on servers that handle Yggdrasil authentication normally.
Category: Exploit Enabled by default: No
Settings
| Setting | Type | Default | Range | Description |
|---|---|---|---|---|
| ForceSlimModel | Toggle | true | — | Forces the slim (Alex-style) arm model for your skin, preventing the client from falling back to the wide arm model when skin variant data is unavailable. |
Last updated: 2026-06-08 — Based on source code