It appears that the binary has suffered from some form of corruption during the deploy process, but so far we've been unable to determine the root cause. It may be a compiler bug, a hardware issue, or a bit flip caused by a cosmic ray. The build server does have ECC RAM and reported no issues so ...

Here is the zip of the dump file
[link removed]

Loewchen wrote: Wed Oct 15, 2025 4:19 pm I am actually able to reproduce this with a non SA install and no mods.

Thanks, I do not have SA installed.

I've tested the issue on a computer with more ram and it still stops responding when the Track is placed.

here is a new save with steps to reproduce

Either Place Track piece below ghost rail piece
Turn on personal roboport and wait for robot to try and place the rail.

Effect your character is ...

Yes, I have tried restarting my computer that did not fix the issue.

Steps
Place a rail in the location provided in the screen shoot
Application stops responding.


Note: Placing the rail in that column will cause the game to stop responding for a couple of chunks up. I have not tired to see how far down the error happens.

Save file is attached

When placing rails in some locations causes the Factorio application to stop responding, and has to be closed via Not responding dialog box. The green rail in the attached image is one that causes the game to stop responding.

10-14-2025, 10-43-47.png


Windows Event Log has the following:
The ...