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Marathon Mouse Not Working? Here’s Why Menus Freeze and How to Fix It
If you’re playing Marathon and your mouse suddenly stops working in menus — you’re not alone.
Many players report that:
- Mouse works fine for movement
- Aiming works normally
- But menus become unusable
- Inventory items can’t be dragged
- Settings can’t be changed
- Cursor moves extremely slowly
- Random button presses occur
For some, this issue even appeared during earlier alpha tests.
If your game feels “playable but broken,” this guide explains what’s happening — and what actually fixes it.
What’s Causing the Mouse Issue?
Based on community reports, the problem appears to be related to:
- Discord overlay
- Discord activity sharing
- Background capture software
- Fullscreen mode conflicts
- Clipping software interfering with input
It does not appear to be a hardware issue in most cases.
The game itself runs fine — but menu UI input becomes unstable or laggy.
How to fix Marathon mouse not working
Here are the solutions players say fixed the problem.
Fix 1: Close Discord Completely
This is the most confirmed fix.
- Close Discord fully
- Make sure it’s not running in background
- Relaunch Marathon
Many players reported the mouse immediately started working normally.
Fix 2: Turn Off Discord Overlay
If you don’t want to close Discord:
- Open Discord
- Go to Settings
- Disable “Enable In-Game Overlay”
- Turn off “Share My Activity”
- Disable clipping / instant replay
Then restart the game.
Overlay conflicts appear to interfere with Marathon’s UI input system.
Fix 3: Disable Discord Clipping
Some players specifically fixed it by:
- Turning off Discord clipping
- Disabling automatic highlights
Clipping software hooks into game input — which can cause mouse lag in menus.
Fix 4: Switch Fullscreen Mode
Press:
Alt + Enter
This toggles between fullscreen and windowed mode.
For some players, switching to windowed mode instantly resolved the menu cursor issue.
Why This Happens
Marathon uses a different input handling layer for:
- Gameplay
- Menus
- Inventory management
When overlay software injects itself into the game:
- Gameplay input works
- UI input breaks
- Cursor behaves strangely
This is why you can move and aim fine, but menus freeze.
Is This a Known Issue?
Yes. Players mention:
- It happened during alpha tests
- It was reported previously
- Bug reports are active
While frustrating, it appears to be a software conflict rather than a fundamental game-breaking bug.
If None of the Fixes Work
Try:
- Updating GPU drivers
- Running game as Administrator
- Disabling Xbox Game Bar
- Disabling NVIDIA ShadowPlay
- Restarting PC
Most reports point to Discord as the primary cause.
Final Thoughts
If Marathon mouse input stops working in menus:
- It’s likely not your mouse
- It’s likely not your PC
- It’s likely a Discord overlay conflict
Quick Fix Summary:
✔ Close Discord
✔ Disable Discord overlay
✔ Turn off clipping
✔ Switch to windowed mode
Once Discord interference is removed, menus become usable again.
