: Version 1.20 relies on complex modern rendering engine mechanics. WebGL 2.0 often runs out of allocated browser memory, causing immediate crashes.
| Problem | Most Likely Fix | Difficulty | | :--- | :--- | :--- | | | Switch to the WASM-GC version of the client. If that fails, switch back to the Standard JS version. | Low | | "Error Loading World" | Perform a Hard Refresh ( Ctrl+Shift+R ). If persists, clear your browser's cache. | Low | | "Connection Refused" (Server) | Ensure your client version matches the server version (e.g., 1.20.1 to 1.20.1). | Medium | | Can't Find Friend's World | Add the correct Relay Server URL (e.g., wss://relay.deev.is/ ) in your game's Network Settings. | Medium | | Extreme Lag / Low FPS | Lower the Render Distance to 6-8 chunks. Try a performance-focused custom client. | Low | | Game Won't Run at All | Enable Hardware Acceleration in your browser settings. Use Chrome, Edge, or Firefox. | Low | | Website is Blocked (School/Work) | Download the HTML file on an allowed network and run it locally. The fix for IT admins is to block local JavaScript via file:///* . | High | eaglercraft 120 1 fix
menu. Note that some servers require you to use a specific command (like ) if they use a plugin for skin synchronization. Authentication : Version 1
: Most black screen or loading hang-ups are caused by corrupt browser cache. Go to your browser's site settings for the specific URL and "Clear Data" or "Wipe Storage" . If that fails, switch back to the Standard JS version
Map your Eaglercraft WebSocket port ID and Java ID inside the config.yml of your BungeeCord setup.
: Porting 1.20 is difficult because it requires reimplementing numerous features from the modern Java Edition that are not present in the 1.8.8 base.
If your current site crashes every 5 minutes, download the :