KSP Version: v1.1.3 build64 ID=012892016.06.21 Windows 7 64-bit updated from 1.1.2 (Steam Install)
What Happens: KSP crashes on start.
All Stock
Steps to Replicate:
1) Start with a v1.1.3 Install. (You also need a separate copy of 1.1.
2) Remove all files in the KSP folder except CSteamworks.bundle.
3) Copy the v1.1.2 data into the KSP folder. (DO NOT copy CSteamworks.bundle from the 1.1.2 Data!)
4) Let Steam update KSP.
5) Hit play, 64-bit.
Results: Game crash, after it loads all the parts and game files and before main menu.
Fixes/Workarounds: None.
Notes/Pictures/Logs:
I have attempted launching twice. The first time froze the computer, requiring a shutdown. The second time just crashed the game.
output_log.txt from C:\ Steam\steamapps\common\Kerbal Space Program\KSP_x64_Data
C:\Steam\steamapps\common\Kerbal Space Program\2016-07-01_110100
C:\Steam\steamapps\common\Kerbal Space Program\2016-07-01_100236
System Information
Also, the hard drives are starting to fail. This may be causing problems, but I don't see how.