What causes save profiles getting mixed up?

Save data is not cleanly scoped per profile, or the active profile is not tracked consistently, so the game reads or writes the wrong profile's data, mixing progress.

How do I catch this when it only happens for some players?

Capture it automatically from the player's device with the full stack trace, the device and OS, the build, and a breadcrumb trail of what they did. That turns a vague complaint into a specific, reproducible issue you can fix without owning the hardware it happens on.

How to Fix Multiple Save Profiles Getting Mixed Up

Quick answer: Scope all save data under the active profile, track the current profile explicitly, and load and write only that profile's data.

Mixed-up profiles are unscoped save data. Cleanly separating them fixes it. Here is how.

How to fix it

1. Scope data per profile

Store each profile's data under a distinct key or folder, so profiles cannot read each other's. Shared or globally-keyed save data lets one profile overwrite or load another's progress.

2. Track the active profile

Keep an explicit current-profile reference and route all reads and writes through it. If the active profile is ambiguous or defaults, the game can save to or load the wrong one.

3. Load and write only that profile

On load and save, operate strictly on the active profile's scoped data. Mixing in global state, or reading the wrong profile path, is what causes one profile's progress to appear in another.

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.