Quick answer: Reset the combo on a clear timeout from the last qualifying action, define exactly what extends and breaks it, and use unscaled or correct timing.
Combo reset bugs are timeout and condition problems. Here is how to fix them.
How to fix it
1. Reset on a clear timeout
Reset the combo when a timeout elapses since the last qualifying action, refreshed each time the player continues the combo. A mistimed or unrefreshed timeout drops combos mid-chain.
2. Define extend and break rules
Be explicit about what extends the combo (a hit landing) and what breaks it (taking damage, missing, time out). Vague or wrong conditions reset the combo on the wrong events or never end it.
3. Use correct timing
Drive the combo timer with appropriate, consistent timing (and the right time source if the game pauses or slows), so it does not reset early on a frame spike or persist through a pause incorrectly.
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.