I'm about 28 hours into the game, and all of the sudden, whenever I move west into the Cista District, the game stutters and then freezes indefinitely, forcing me to control-alt-delete to quit the application. When I open the debugger, the error I get is "Unhandled exception at 0x0000000143834BB7 in DXMD.exe: 0xC0000005: Access violation reading location 0x0000000000000000." I've tried validating the installation in Steam, playing in windowed mode, playing in DX12 mode, freeing up space on my SSHD, disabling all DLC, using different audio playback devices, updating all drivers, and even uninstalling and reinstalling the entire game. Currently, I can't play the game for more than about a minute.