Awesome,

Thank you for the fix. Keep up the good work,

There we go:
https://dl.dropboxusercontent.com/u/456 ... osave2.zip

0.13 first time 0.13.1 second time.

I have a save just before hand so grabbed this:

0.001 2016-06-30 12:39:01; Factorio 0.13.1 (Build 22864, win64, steam)
0.001 Operating system: Windows 10
0.001 Program arguments: "C:\Program Files (x86)\Steam\steamapps\common\Factorio\bin\x64\Factorio.exe ...

Hi,
Happened twice now - upon the timer running out for level 15 to level 16 - with all requirements filled (or clicking the next level button) the game crashes and I'm hit with this error message. Happened twice on different play through, only happened since 0.13

Error while running the event ...