120 1 Fix: Eaglercraft

Eaglercraft is a popular browser-based implementation of Minecraft Java Edition, allowing gameplay without a native client. Version 1.2.0 introduced significant features but also stability and compatibility problems. The community-driven “1.2.1 fix” (often labeled Eaglercraft 1.2.1 fix or 120 1 fix ) addresses these issues. This paper explains the technical background, common bugs in 1.2.0, the nature of the fix, and how to apply it.

A: The "fix" is to manually export your world: Esc > "Export World" > Save the JSON file. To import, use "Import World". eaglercraft 120 1 fix

-Xms1024M -Xmx2048M

If the game loads but is unplayably slow, use these advanced tweaks. common bugs in 1.2.0

However, users quickly reported: