Quick answer: Save checkpoints at safe moments and positions, validate the state is recoverable, and adjust on respawn (safe position, minimum health) so the player can continue.
A checkpoint saving a bad state is capturing an unsafe moment. Validating it fixes it. Here is how.
How to fix it
1. Save at safe moments
Trigger checkpoints when the player is in a safe, stable state — grounded, out of combat, not mid-hazard — rather than at arbitrary moments. Saving mid-fall or in a hazard respawns the player straight into death.
2. Validate the state is recoverable
Before committing a checkpoint, validate that respawning into it is survivable and winnable — not trapped, not instantly dead, not soft-locked. A checkpoint into an unrecoverable state is worse than none.
3. Adjust on respawn
On respawn, place the player at a safe position and give a minimum health or brief invincibility, so they can recover even if the captured moment was tight. This prevents respawn loops into immediate death.
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.