Quick answer: Record the killer's identity and view transform from the server's authoritative kill event and play the killcam from that captured data rather than reconstructing it on the client.
A killcam that points at the wrong enemy or an empty angle undermines the whole feature. It happens when the client guesses the killer or uses a stale damager. Driving the killcam from the authoritative kill event fixes the framing.
How to fix it
1. Capture killer from the kill event
Take the killer's player ID, weapon, and position from the server's authoritative kill notification, not from the victim's last-hit-by guess which can be wrong on trades.
2. Record the killer's view
Either replay buffered position snapshots of the killer or capture their camera transform at the moment of the kill so the killcam frames them accurately.
3. Handle environmental and trade kills
When there is no player killer (fall damage, world hazard) or a near-simultaneous trade, fall back to a sensible default angle rather than showing a wrong or empty 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 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 errors you never hear about are the ones quietly costing you players. Visibility turns them into a worklist.