Entity Desync Viewer for Minecraft 1.21.4

Entity Desync Viewer for Minecraft is a mod that visualizes one of the most subtle yet common technical problems: desyncs between the client and the server.

Have you ever wondered why mobs sometimes move jerkily, take damage “out of thin air,” or suddenly appear in a different place than you saw them a second ago? These are symptoms of what’s called desync, and this mod allows you to realize where the client thinks an entity is and where the server sees it. The mod doesn’t add any new items or mechanics to the gameplay but provides advanced players, mod developers, and tech enthusiasts with a powerful diagnostic and debugging tool.

How to install the modification:

First step: download and install Fabric и Fabric API.

Second step: download the mod file.

Third step: copy Entity Desync Viewer mod package to the .minecraft/mods folder (if it does not exist, install Forge again or create it yourself).

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