Quick answer: Detect the active controller disconnecting, pause the game, show the platform-appropriate reconnect message, and resume cleanly when it reconnects.
Console controller-disconnect failures are a certification requirement. Handling it correctly fixes it. Here is how.
How to fix it
1. Detect the active controller disconnect
Monitor the controller assigned to the player and detect when it disconnects (battery, unplugged). Continuing to run gameplay without the active controller fails certification and frustrates players.
2. Pause and prompt for reconnect
When the active controller disconnects, pause the game and display the platform's expected reconnect or controller message. This is a hard requirement on consoles, not just good practice.
3. Resume cleanly
When a controller reconnects (or the player reassigns one), clear the prompt and resume gameplay from the paused state, ensuring input routes to the reconnected controller.
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 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.
Reproduce it once with full context and the fix writes itself. The hunt is the expensive part.