Map tiles and cursor unsync when manipulating with 2 fingers
Posted: Wed May 06, 2026 8:30 am
Hello everybody! I am facing a map bug since a few versions of the software (not sure exactly when it appeared, maybe 6 months to 1 year ago).
The problem exists on the latest version (I currently am on 24.70) and persists after a full factory reset of the device. It consistently happens 100% of the time and is therefore very reproducible.
The issue: there is a rendering synchronization error affecting the position indicator (GPS cursor) and the map tiles underneath. When the map viewport undergoes rotation, zoom and pan transformations simultaneously (using 2 fingers and moving them around), the marker and the tiles fail to maintain their correct coordinate binding relative to each other.
It's as if the cursor icon and the map tiles were rendered on separate UI layers that do not update with the same transform matrix. So it looks like the tiles or cursor offset or drift from each other.
I attached a video demonstrating the problem and how to trigger it. It's quite easy: basically, open the map, put two fingers on it, and move them away and around each other to provoke a zoom and rotation. You can also add a pan to it by moving the two fingers up or down. You will quickly see the cursor icon drift away from the tiles (or the tiles drifting away from the icon?). Even just moving the two fingers randomly on the screen is enough to trigger the problem quickly.
This is quite disruptive to the way I interact with the map, since I got used to touch interaction (rather than using the button controls).
I'm curious to hear from other users if they are facing this bug too.
The problem exists on the latest version (I currently am on 24.70) and persists after a full factory reset of the device. It consistently happens 100% of the time and is therefore very reproducible.
The issue: there is a rendering synchronization error affecting the position indicator (GPS cursor) and the map tiles underneath. When the map viewport undergoes rotation, zoom and pan transformations simultaneously (using 2 fingers and moving them around), the marker and the tiles fail to maintain their correct coordinate binding relative to each other.
It's as if the cursor icon and the map tiles were rendered on separate UI layers that do not update with the same transform matrix. So it looks like the tiles or cursor offset or drift from each other.
I attached a video demonstrating the problem and how to trigger it. It's quite easy: basically, open the map, put two fingers on it, and move them away and around each other to provoke a zoom and rotation. You can also add a pan to it by moving the two fingers up or down. You will quickly see the cursor icon drift away from the tiles (or the tiles drifting away from the icon?). Even just moving the two fingers randomly on the screen is enough to trigger the problem quickly.
Spoiler
I'm curious to hear from other users if they are facing this bug too.