Standalone player (BGE) crashes when pressing any key while running

Steps to reproduce:
-open Blender
-change engine to Blender game
-press button to start Standalone Player
-Press any key

Game engine will crash/quit with only "Error Totblock: 16" as a message in the console

Blender testbuild version:
version: 2.77 (sub 3), branch: master, commit date: 2016-08-23 14:48, hash: 7dc328e
Platform: Windows 10 , 64