I was playing a 0.12.26 map at the time.
The game updated when I started it up again.
Funnily enough, the autosave I loaded brought me back to the very moment that I mined the transport belt.
Perhaps there was a conflict between my action and the creation of an autosave?
Thanks
Log file:
0.013 2016-03-23 18:17:35; Factorio 0.12.28 (Build 17913, win64, steam)
0.013 Operating system: Windows 7 Service Pack 1
0.014 Program arguments: "D:\Steam\steamapps\common\Factorio\bin\x64\Factorio.exe"
0.014 Read data path: D:/Steam/steamapps/common/Factorio/data
0.014 Write data path: C:/Users/Davyd/AppData/Roaming/Factorio
0.014 Binaries path: D:/Steam/steamapps/common/Factorio/bin
0.071 Graphics options: [FullScreen: true] [VSync: true] [UIScale: 100%] [MultiSampling: OFF] [Graphics quality: normal] [Video memory usage: high] [Light scale: 20%] [Screen: 255]
0.072 Available display adapters: 1
0.072 [0]: \\.\DISPLAY1 - Intel(R) HD Graphics 4000 {0x05, [0,0], 1920x1080, 32bit, 60Hz}
0.072 Create display on adapter 0. Size 1280x720 at position [310, 162].
0.721 Initialised Direct3D:[0] Intel(R) HD Graphics 4000; driver: nvumdshimx.dll 10.18.13.5598
1.020 Desktop composition is active.
1.242 Loading mod core 0.0.0 (data.lua)
1.277 Loading mod base 0.12.28 (data.lua)
35.885 Initial atlas bitmap size is 16384
35.887 Created atlas bitmap 16384x5509
45.703 Sprites loaded
45.984 Loading sounds...
49.595 Factorio initialised
127.088 Loading map C:/Users\Davyd\AppData\Roaming\Factorio\saves\POWAH3.zip
127.495 Info Scenario.cpp:124: Map version 0.12.26-0
Factorio crashed. Generating symbolized stacktrace, please wait ...
c:\cygwin64\tmp\factorio-eqppjn\libraries\stackwalker\stackwalker.cpp (923): StackWalker::ShowCallstack
c:\cygwin64\tmp\factorio-eqppjn\src\util\logger.cpp (306): Logger::writeStacktrace
c:\cygwin64\tmp\factorio-eqppjn\src\util\logger.cpp (360): Logger::logStacktrace
c:\cygwin64\tmp\factorio-eqppjn\src\util\crashhandler.cpp (84): CrashHandler::writeStackTrace
c:\cygwin64\tmp\factorio-eqppjn\src\util\crashhandler.cpp (174): CrashHandler::SignalHandler
f:\dd\vctools\crt\crtw32\misc\winxfltr.c (372): _XcptFilter
f:\dd\vctools\crt\crtw32\startup\thread.c (259): _callthreadstart$filt$0
f:\dd\vctools\crt\crtw32\misc\amd64\chandler.c (162): __C_specific_handler
ERROR: SymGetLineFromAddr64, GetLastError: 487 (Address: 00000000774E8BBD)
00000000774E8BBD (ntdll): (filename not available): RtlDecodePointer
ERROR: SymGetLineFromAddr64, GetLastError: 487 (Address: 00000000774D875F)
00000000774D875F (ntdll): (filename not available): RtlUnwindEx
ERROR: SymGetLineFromAddr64, GetLastError: 487 (Address: 000000007750D348)
000000007750D348 (ntdll): (filename not available): KiUserExceptionDispatcher
c:\cygwin64\tmp\factorio-eqppjn\src\gui\entitybutton.cpp (55): EntityButton::draw
c:\cygwin64\tmp\factorio-eqppjn\src\gui\entitybutton.cpp (117): EntityButton::paintComponent
c:\cygwin64\tmp\factorio-eqppjn\libraries\agui\src\agui\widget.cpp (1293): agui::Widget::_recursivePaintChildren
c:\cygwin64\tmp\factorio-eqppjn\libraries\agui\src\agui\widget.cpp (1309): agui::Widget::_recursivePaintChildren
c:\cygwin64\tmp\factorio-eqppjn\libraries\agui\src\agui\widget.cpp (1309): agui::Widget::_recursivePaintChildren
c:\cygwin64\tmp\factorio-eqppjn\libraries\agui\src\agui\widget.cpp (1305): agui::Widget::_recursivePaintChildren
c:\cygwin64\tmp\factorio-eqppjn\libraries\agui\src\agui\widget.cpp (1309): agui::Widget::_recursivePaintChildren
c:\cygwin64\tmp\factorio-eqppjn\libraries\agui\src\agui\widget.cpp (1309): agui::Widget::_recursivePaintChildren
c:\cygwin64\tmp\factorio-eqppjn\libraries\agui\src\agui\widget.cpp (1305): agui::Widget::_recursivePaintChildren
c:\cygwin64\tmp\factorio-eqppjn\libraries\agui\src\agui\widget.cpp (1309): agui::Widget::_recursivePaintChildren
c:\cygwin64\tmp\factorio-eqppjn\libraries\agui\src\agui\gui.cpp (1025): agui::Gui::render
c:\cygwin64\tmp\factorio-eqppjn\src\graphics\guirenderer.cpp (35): GuiRenderer::prepare
c:\cygwin64\tmp\factorio-eqppjn\src\mainloop.cpp (222): MainLoop::prepare
c:\cygwin64\tmp\factorio-eqppjn\src\mainloop.cpp (473): MainLoop::tickStep
c:\cygwin64\tmp\factorio-eqppjn\src\mainloop.cpp (569): MainLoop::run
c:\cygwin64\tmp\factorio-eqppjn\src\main.cpp (493): wmain
f:\dd\vctools\crt\crtw32\startup\crt0.c (255): __tmainCRTStartup
ERROR: SymGetLineFromAddr64, GetLastError: 487 (Address: 00000000772B59ED)
00000000772B59ED (kernel32): (filename not available): BaseThreadInitThunk
ERROR: SymGetLineFromAddr64, GetLastError: 487 (Address: 00000000774EB371)
00000000774EB371 (ntdll): (filename not available): RtlUserThreadStart
8159.734 Error Util.cpp:78: Unexpected error occurred. You can help us to solve the problem by posting the contents of the log file on the Factorio forums.
