Replaced SFML with the VC12 version, it just changes the problem slightly:
Code Select
Unhandled exception at 0x0FC3FA96 (sfml-system-d-2.dll) in tgui-test.exe: 0xC0000005: Access violation reading location 0xCCCCCCD8.
Exception thrown at 0x0FC3FA96 (sfml-system-d-2.dll) in tgui-test.exe: 0xC0000005: Access violation reading location 0xCCCCCCD8.