What causes an encounter step counter not resetting between rooms?

Your steps-until-next-encounter value lives in a global variable and is never reset on room change, so entering a new room can trigger a battle on the first step.

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 the Encounter Step Counter Carrying Over Between Rooms in GameMaker

Quick answer: Reset the step counter and roll a fresh steps-until-encounter target whenever the player enters a new room, and respect rooms that have no encounters.

Walking one step into a town and getting ambushed means the encounter counter carried over from the field. Here is how to reset it per room.

How to fix it

1. Reset in Room Start

In the room's Room Start event, reset the accumulated steps to zero and pick a new random target for that room's encounter rate.

2. Honor safe rooms

Tag towns and safe rooms as encounter-free and skip all step accumulation there so no counter builds up to ambush the player on arrival.

3. Scope the counter sensibly

Keep the global if you want it to span a single room, but always re-seed it on transition so values never leak between rooms.

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 GameMaker 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.