show me this error in report . after launching stop at 45%
[2017.09.12-22.37.33:690][ 0]LogModuleManager: Warning: ModuleManager: Unable to load module ‘E:/working/UE4/UE_4.17/Engine/Binaries/Win64/UE4Editor-MeshUtilities.dll’ because the file couldn’t be loaded by the OS.