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2 Open Issues Need Help Last updated: Feb 19, 2026

Open Issues Need Help

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AI Summary: The game crashes with an `IllegalStateException` when attempting to place any boat. This occurs because the Maple mod's `MapleChestBoatEntity` registers `SynchedEntityData` values that conflict with the vanilla `Boat` class, causing the vanilla entity to expect an undefined data value.

Complexity: 2/5
bug good first issue forge

AI Summary: The Maple mod for Minecraft 1.21.4 is causing server crashes due to a `NoClassDefFoundError` for `net.minecraft.class_897`, a client-side class. The task is to debug the Maple mod's code (specifically line 51 of Maple.java) to prevent it from attempting to load client-side classes on the server. This likely involves refactoring the code to use server-side equivalents or conditional checks to only load the relevant code on the client.

Complexity: 4/5
bug good first issue