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AdvancedLootInfo 1.10.0 freezes client when connecting to multiplayer server #48

@Larbaco

Description

@Larbaco

Bug Description

When connecting to a multiplayer server with AdvancedLootInfo (ali) installed on the client, the game freezes indefinitely during loading and must be killed.

Root Cause

The ali:jei_plugin enters an extremely slow processing loop when the server sends compressed loot table data. The server processes 13,349 loot tables (10.03 MB → 0.54 MB compressed) in ~1 second, but the client-side JEI plugin takes 7+ minutes, blocking the render thread with "Blocking this thread until all data are received!".

The client disconnects after ~3 seconds, and the plugin keeps running in the background, making the game unresponsive.

Environment

  • Minecraft 1.20.1, Forge 47.4.20
  • AdvancedLootInfo: forge-1.20.1-1.10.0 (mods.toml version 1.9.1)
  • Modpack: Desolate Planet - A Crash Landing Remake

Upstream issues

Workaround

Removing/disabling AdvancedLootInfo on the client allows connection. The server can keep the mod.

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