Quick answer: Drive footsteps from the walk animation cadence rather than ground contacts, add a minimum interval, and smooth ground detection on uneven terrain.

Footstep spam on stairs is contact-triggered audio bouncing. Here is how to fix it.

How to fix it

1. Drive footsteps from animation

Trigger footstep sounds from the walk and run animation's foot-plant events rather than physics ground contacts. Animation-driven footsteps match the stride and do not spam when the character bounces on stairs.

2. Add a minimum interval

If you must use ground contacts, enforce a minimum time between footstep sounds so rapid re-contacts on stairs cannot play the sound many times in quick succession.

3. Smooth ground detection

On stairs and slopes the character can momentarily lose and regain ground contact, retriggering footsteps. Smooth the grounded check (a coyote-time style buffer) so brief contact loss does not spam steps.

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.