Quick answer: Switch Input.mouse_mode back to MOUSE_MODE_VISIBLE when opening a menu and restore Captured when returning to gameplay.

If your pause menu buttons do nothing while flying the camera works, the mouse is captured and cannot reach the UI. Releasing it for menus fixes it. Here is how.

How to fix it

1. Release the mouse for menus

On opening a menu set Input.mouse_mode = Input.MOUSE_MODE_VISIBLE so the cursor is free to move and click Control nodes.

2. Restore capture on resume

When closing the menu set it back to MOUSE_MODE_CAPTURED for first-person camera control, keeping the two states mutually exclusive.

3. Centralize the state

Drive mouse_mode from a single UI-state manager rather than scattered scripts, so two systems do not fight to capture and release the cursor on the same frame.

Catching the ones you can't reproduce

The hardest version of this to fix is the one you can't reproduce — it only happens on a player's hardware, OS, driver, or save state, under conditions that simply aren't present on your machine. A report that says “it crashed” or “it froze” gives you nothing to act on, so the bug survives release after release while quietly costing you players.

Automatic error capture closes that gap. Each failure arrives with its full stack trace, the device and OS, the build number, and a breadcrumb trail of what the player did right before it broke, so even a failure you have never seen becomes a specific, reproducible issue. Fold identical failures into one signature ranked by how many players each hits, and your worklist sorts itself worst-first instead of arriving as a stream of vague complaints.

This is where a tool like Bugnet earns its place. Its SDK captures every Godot error automatically with the full stack trace plus device, OS, memory, build, and game-state context, folds duplicates into one grouped issue with an occurrence count, and ties each to the build it first appeared on — so you fix the problem that hurts the most players first and confirm it is gone when its signature disappears from the next release.

The bug you can't reproduce isn't gone — it's just invisible until you capture it from the player's device.