Factorio Forums

1.What did you do?
I was building rails
2.What happened?
Dialog box with this text pops up, then game goes to mainmenu.
"Pathfinding from an unmapped starting chunk position!"
3. What did you expect to happen instead? It might be obvious to you, but do it anyway!
No dialog to appear and gameplay to continue.

4. Does it happen always, once, or sometimes?
I reloaded the autosave and it occurred again.
I saved and loaded the save and it occurred again. (about 5 seconds after load)

Thanks for the report. It was quite a tricky one, but it exposed an oversight in our code that only came up for a single frame.

It should be fixed for 2.0.14, but since that not coming out immediately here is a save where I fixed the crash for now.