Fresh copy of 0.16.2, cleaned out the ~/Library/Application support/factorio folder. Crashes when loading.

Log looks like this:

0.000 2017-12-14 19:35:13; Factorio 0.16.2 (build 34253, mac, alpha)
0.000 Operating system: OS X 10.9.5
0.000 Program arguments: "/Applications/factorio.app"
0.000 ...