Never mind, it works fine in 11.x. Was a bug, not me doing something wrong...

Here is the crash log:


Process: factorio [30723]
Path: /Applications/factorio.app/Contents/MacOS/factorio
Identifier: com.factorio
Version: 0.10.12 (0.10.12)
Code Type: X86-64 (Native)
Parent Process: ??? [1]
Responsible: factorio [30723]
User ID: 501

Date/Time: 2015-02-25 22:10:34.673 -0500
OS ...