Quick answer: Add logging and breadcrumbs around the suspect area, stop swallowing exceptions, and capture state automatically when the wrong behavior is detected.
A bug with no log trace is a silent failure. Adding visibility finds it. Here is how.
How to fix it
1. Add breadcrumbs around the area
Add logging or breadcrumbs around where the bug occurs so you can see the path and state leading to it. A bug with no trace usually just lacks instrumentation at the right place.
2. Stop swallowing exceptions
Catch blocks that swallow exceptions hide failures. Log or rethrow them so a silent failure becomes visible. A bug that leaves nothing in the logs is often an exception caught and ignored.
3. Capture state on wrong behavior
Where you can detect the wrong outcome (an invalid value, an unexpected state), capture the state and context at that point. This turns a silent bug into one with a record you can diagnose.
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.
Most of the time the fix is small. Seeing the failure clearly is the part that actually costs you.