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Moonlight Mod Crash & Startup Fixes

A structured troubleshooting sequence for startup crashes, blank windows, broken extensions, and update conflicts.

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This guide focuses on a maintainable approach: use official upstream sources, make one meaningful change at a time, and keep a clear recovery path if a Discord or Moonlight update changes behavior.

Start with the last change

If the issue began after an update or extension install, reverse that change first. This is faster and more informative than deleting the entire setup immediately.

Unpatch when needed

Use the installer to unpatch Discord if the client cannot open. Confirm that Discord works normally, then update the installer and Moonlight before patching again.

Reduce extension variables

Disable recently added or nonessential extensions. Re-enable them one at a time and restart when required so you can identify the exact conflict.

Collect useful details

When reporting a bug, include your operating system, Discord channel, Moonlight release, recent changes, and reproducible steps. Avoid posting personal account tokens or private logs.

Reminder: Moonlight is a Discord client mod. The official documentation warns that client mods are against Discord's Terms of Service, so consider that policy risk before installation.

Useful upstream links

Moonlight GitHub project ↗ · Installer repository ↗ · Official documentation ↗