Honestly just looking for a “you guys know about this” and “is fixed for Preview 4” 
Here is what is failing:
Log file open, 03/03/19 15:35:06
LogWindows: Failed to load ‘aqProf.dll’ (GetLastError=126)
LogWindows: File ‘aqProf.dll’ does not exist
LogWindows: Failed to load ‘VtuneApi.dll’ (GetLastError=126)
LogWindows: File ‘VtuneApi.dll’ does not exist
LogWindows: Failed to load ‘VtuneApi32e.dll’ (GetLastError=126)
LogWindows: File ‘VtuneApi32e.dll’ does not exist
LogConsoleResponse: Display: Failed to find resolution value strings in scalability ini. Falling back to default.
LogInit: Display: Running engine for game: RTX_CrashTest
LogPakFile: Registered encryption key ‘00000000000000000000000000000000’: 0 pak files mounted, 0 remain pending
LogPlatformFile: Not using cached read wrapper
LogTaskGraph: Started task graph with 5 named threads and 35 total threads with 3 sets of task threads.
LogStats: Stats thread started at 0.390998
LogD3D11RHI: Loaded GFSDK_Aftermath_Lib.x64.dll
LogWindows: Failed to load ‘…/…/…/Engine/Binaries/ThirdParty/libsndfile/Win64/libsndfile-1.dll’ (GetLastError=126)
LogWindows: File ‘…/…/…/Engine/Binaries/ThirdParty/libsndfile/Win64/libsndfile-1.dll’ does not exist
LogAudioMixer: Display: Failed to load Sound File dll