Quick answer: Validate each payload on the client before sending, log validation failures in debug builds, and have the backend return per-event errors instead of swallowing them.

An event with a null required property gets dropped at ingest and you never know, leaving gaps in your funnel. Validating before send and surfacing rejections makes the failures visible.

How to fix it

1. Validate before sending

Check required keys, types, and value limits against the schema before enqueuing. Repair or drop with a logged reason so the failure is intentional, not silent.

2. Surface failures in debug

In development builds, log or assert on any event that fails validation so engineers catch bad instrumentation immediately. Production can fail quietly but still increment a counter.

3. Return per-event ingest errors

Have the backend respond with which events it rejected and why, rather than a blanket 200. The client can then log the rejection and you can fix the emitter.

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.