Game crashing after 20 mins.
[2018.06.13-08.06.13:091][702]LogD3D11RHI: Timed out while waiting for GPU to catch up. (0.5 s)
[2018.06.13-08.06.13:592][702]LogD3D11RHI: Timed out while waiting for GPU to catch up. (0.5 s)
[2018.06.13-08.06.14:091][702]LogD3D11RHI: Timed out while waiting for GPU to catch up. (0.5 s)
[2018.06.13-08.06.14:591][702]LogD3D11RHI: Timed out while waiting for GPU to catch up. (0.5 s)
[2018.06.13-08.06.14:606][702]LogWindows: Windows GetLastError: The operation completed successfully. (0)
[2018.06.13-08.06.17:332][702]LogMemory: Platform Memory Stats for WindowsNoEditor
[2018.06.13-08.06.17:332][702]LogMemory: Process Physical Memory: 2145.31 MB used, 2453.86 MB peak
[2018.06.13-08.06.17:332][702]LogMemory: Process Virtual Memory: 4008.16 MB used, 4121.20 MB peak
[2018.06.13-08.06.17:332][702]LogMemory: Physical Memory: 5808.53 MB used, 10527.54 MB free, 16336.07 MB total
[2018.06.13-08.06.17:332][702]LogMemory: Virtual Memory: 8869.88 MB used, 10527.54 MB free, 134217728.00 MB total
[2018.06.13-08.06.17:332][702]LogD3D11RHI: Timed out while waiting for GPU to catch up. (0.5 s)
[2018.06.13-08.06.17:332][702]LogD3D11RHI: Timed out while waiting for GPU to catch up. (0.5 s)
[2018.06.13-08.06.17:332][702]LogD3D11RHI: Timed out while waiting for GPU to catch up. (0.5 s)
[2018.06.13-08.06.17:332][702]LogD3D11RHI: Timed out while waiting for GPU to catch up. (0.5 s)
[2018.06.13-08.06.17:332][702]LogD3D11RHI: Timed out while waiting for GPU to catch up. (0.5 s)
[2018.06.13-08.06.17:332][702]LogWindows:Error: === Critical error: ===
[2018.06.13-08.06.17:332][702]LogWindows:Error:
[2018.06.13-08.06.17:332][702]LogWindows:Error: Fatal error: [File:C:\UE4\CSAND\Engine\Source\Runtime\RenderCore\Private\RenderingThread.cpp] [Line: 959]
[2018.06.13-08.06.17:332][702]LogWindows:Error: GameThread timed out waiting for RenderThread after 60.00 secs
[2018.06.13-08.06.17:332][702]LogWindows:Error:
[2018.06.13-08.06.17:332][702]LogWindows:Error:
[2018.06.13-08.06.17:332][702]LogWindows:Error: !0x0000000000000000
[2018.06.13-08.06.17:332][702]LogWindows:Error:
[2018.06.13-08.06.17:367][702]LogExit: Executing StaticShutdownAfterError
[2018.06.13-08.06.17:576][702]LogWindows: FPlatformMisc::RequestExit(1)