Lighting build doesnt work above medium

Hello world of Unreal,

I am new to unreal engine, and i am trying to build lighting for a very simple scene that i have made for architectural visualization purposes. The scene is a simple house with a patio, no trees no grass. It was designed in Archicad then imported to 3ds max then to Unreal. All seems well. I have a stationary direct light and a stationary skylight. Nothing fancy. If i try to build lighting at medium its ok, it takes about 2-3 minutes to happen. However if i try to put production or high and build lighting it doesnt even want to start. The swarm kicks off, then stays for 10-20 seconds in 0% then just drops the job.

This is the log from the swarm agent:

11:44:52 AM: [Interface:TryOpenConnection] Local connection established
11:44:53 AM: [Job] Accepted Job 72B2F44E-4C88863E-229FEE8D-884B8969
11:45:07 AM: [Job] Launched Job UnrealLightmass_2017-10-06_08-22-37_1068480-64bit.exe
11:45:07 AM: [Job] PID is 8740
11:45:07 AM: [Job] GUID is “72B2F44E-4C88863E-229FEE8D-884B8969”
11:45:07 AM: LogLightmass: Display: Lightmass Win64 started on: PC04. Command-line: 72B2F44E4C88863E229FEE8D884B8969
11:45:07 AM: Failed to determine engine directory: Defaulting to …/…/…/Engine/
11:45:07 AM: Failed to load ‘aqProf.dll’ (GetLastError=126)
11:45:07 AM: File ‘aqProf.dll’ does not exist
11:45:07 AM: Failed to load ‘VSPerf140.dll’ (GetLastError=126)
11:45:07 AM: File ‘VSPerf140.dll’ does not exist
11:45:07 AM: Failed to load ‘VtuneApi.dll’ (GetLastError=126)
11:45:07 AM: File ‘VtuneApi.dll’ does not exist
11:45:07 AM: Failed to load ‘VtuneApi32e.dll’ (GetLastError=126)
11:45:07 AM: File ‘VtuneApi32e.dll’ does not exist
11:45:07 AM: Lightmass Win64 started on: PC04. Command-line: 72B2F44E4C88863E229FEE8D884B8969
11:45:07 AM: LogLightmass: Display: Processing scene GUID: 72B2F44E4C88863E229FEE8D884B8969 with 10 threads
11:45:07 AM: Processing scene GUID: 72B2F44E4C88863E229FEE8D884B8969 with 10 threads
11:45:07 AM: Building static lighting…
11:45:07 AM: [OpenConnection] Registering TCP channel …
11:45:07 AM: [OpenConnection] Connecting to agent …
11:45:07 AM: [TryOpenConnection] Testing the Agent
11:45:07 AM: [TryOpenConnection] Opening Connection to Agent
11:45:07 AM: [TryOpenConnection] Local Process ID is 8740
11:45:07 AM: [Job] Found a parent connection for PID 8740
11:45:07 AM: [Job] 55A51394 → 56E560E2
11:45:07 AM: [Interface:TryOpenConnection] Local connection established
11:45:08 AM: Measured CPU frequency: 3.30 GHz
11:45:08 AM: FStaticLightingSystem started using GKDOPMaxTrisPerLeaf: 4
11:45:08 AM: Number of texture mappings: 148
11:45:08 AM: Number of fluid mappings: 0
11:45:08 AM: Number of landscape mappings: 0
11:45:08 AM: Number of BSP mappings: 0
11:45:08 AM: Number of static mesh instance mappings: 148
11:45:08 AM: Scene surface area calculated at 30.376 million units (30.973% of the estimated 98.072 million units)
11:45:08 AM: Importance volume surface area calculated at 27.762 million units (46.515% of the estimated 59.683 million units)
11:45:08 AM:
11:45:08 AM:
11:45:08 AM: Collision Mesh Overview:
11:45:08 AM: Num Triangles : 688612
11:45:08 AM: MeshInfos : 0.0Mb
11:45:08 AM: UVs : 5.0Mb
11:45:08 AM: LightmapUVs : 5.0Mb
11:45:08 AM: Embree Used Memory : 51.4Mb
11:45:08 AM:
11:45:08 AM:
11:45:08 AM: Processing…
11:45:08 AM: EmitDirectPhotons complete, 0.021 million photons emitted in 0.1 seconds
11:45:09 AM: EmitIndirectPhotons complete, 0.133 million photons emitted in 0.1 seconds
11:45:09 AM: Marking Irradiance Photons complete, 0.011 million photons marked in 0.1 seconds
11:45:12 AM: Caching Irradiance Photons complete, 0.068 million cache samples in 3.1 seconds
11:45:12 AM: Calculate Irradiance Photons complete, 0.004 million irradiance calculations in 0.3 seconds
11:45:21 AM: LogWindows: Warning: CreateProc failed (2) …/…/…/Engine/Binaries/Win64/CrashReportClient.exe “C:/Users/PC 08/AppData/Local/UnrealEngine/4.17/Saved/Swarm/Engine/Programs/UnrealLightmass/Saved/Crashes/_0000” -AppName=UE4-UnrealLightmass -CrashGUID=_0000 -DebugSymbols=…\Engine\Intermediate\Symbols
11:45:22 AM: [Job] Job has failed! Job executable didn’t exit cleanly. Exit code: -1066598274
11:45:22 AM: [CloseConnection] Closing connection 55A51394 using handle 55A51394
11:45:22 AM: [CloseConnection] Connection confirmed for disconnection 55A51394
11:45:22 AM: [CloseConnection] Closing orphaned Job (72B2F44E-4C88863E-229FEE8D-884B8969)
11:45:22 AM: [MaintainConnections] Connection 55A51394 is DISCONNECTING
11:45:22 AM: [MaintainConnections] Detected dropped local connection, cleaning up (56E560E2)
11:45:22 AM: [CloseConnection] Closing connection 56E560E2 using handle 56E560E2
11:45:22 AM: [CloseConnection] Connection confirmed for disconnection 56E560E2
11:45:22 AM: [UpdateTaskState]: Task Killed locally by PC04, counted as failure
11:45:22 AM: [UpdateTaskState]: Task Killed locally by PC04, counted as failure
11:45:22 AM: [UpdateTaskState]: Task Killed locally by PC04, counted as failure
11:45:22 AM: [UpdateTaskState]: Task Killed locally by PC04, counted as failure
11:45:22 AM: [UpdateTaskState]: Task Killed locally by PC04, counted as failure
11:45:22 AM: [UpdateTaskState]: Task Killed locally by PC04, counted as failure
11:45:22 AM: [UpdateTaskState]: Task Killed locally by PC04, counted as failure
11:45:22 AM: [UpdateTaskState]: Task Killed locally by PC04, counted as failure
11:45:22 AM: [UpdateTaskState]: Task Killed locally by PC04, counted as failure
11:45:22 AM: [UpdateTaskState]: Task Killed locally by PC04, counted as failure
11:45:22 AM: [UpdateTaskState]: Task Killed locally by PC04, counted as failure
11:45:22 AM: [UpdateTaskState]: Task Killed locally by PC04, counted as failure
11:45:22 AM: [UpdateTaskState]: Task Killed locally by PC04, counted as failure
11:45:22 AM: [UpdateTaskState]: Task Killed locally by PC04, counted as failure
11:45:22 AM: [UpdateTaskState]: Task Killed locally by PC04, counted as failure
11:45:22 AM: [UpdateTaskState]: Task Killed locally by PC04, counted as failure
11:45:22 AM: [UpdateTaskState]: Task Killed locally by PC04, counted as failure
11:45:22 AM: [UpdateTaskState]: Task Killed locally by PC04, counted as failure
11:45:22 AM: [UpdateTaskState]: Task Killed locally by PC04, counted as failure
11:45:22 AM: [UpdateTaskState]: Task Killed locally by PC04, counted as failure
11:45:22 AM: [UpdateTaskState]: Task Killed locally by PC04, counted as failure
11:45:22 AM: [CloseConnection] Connection disconnected 56E560E2
11:45:22 AM: [GetMessage] Safely returning to 56E560E2 with no message
11:45:22 AM: [MaintainConnections] Connection 55A51394 is DISCONNECTING
11:45:22 AM: [MaintainConnections] Local connection has closed (56E560E2)
11:45:22 AM: [MaintainConnections] Removed connection 56E560E2
11:45:23 AM: [MaintainConnections] Connection 55A51394 is DISCONNECTING
11:45:23 AM: [MaintainConnections] Connection 55A51394 is DISCONNECTING
11:45:24 AM: [MaintainConnections] Connection 55A51394 is DISCONNECTING
11:45:24 AM: [MaintainConnections] Connection 55A51394 is DISCONNECTING
11:45:25 AM: [MaintainConnections] Connection 55A51394 is DISCONNECTING
11:45:25 AM: [MaintainConnections] Connection 55A51394 is DISCONNECTING
11:45:26 AM: [MaintainConnections] Connection 55A51394 is DISCONNECTING
11:45:26 AM: [MaintainConnections] Connection 55A51394 is DISCONNECTING
11:45:27 AM: [MaintainConnections] Connection 55A51394 is DISCONNECTING
11:45:27 AM: [MaintainConnections] Connection 55A51394 is DISCONNECTING
11:45:28 AM: [MaintainConnections] Connection 55A51394 is DISCONNECTING
11:45:28 AM: [MaintainConnections] Connection 55A51394 is DISCONNECTING
11:45:29 AM: [MaintainConnections] Connection 55A51394 is DISCONNECTING
11:45:29 AM: [CloseConnection] Connection disconnected 55A51394
11:45:29 AM: [GetMessage] Safely returning to 55A51394 with no message
11:45:29 AM: [MaintainConnections] Local connection has closed (55A51394)
11:45:29 AM: [MaintainConnections] Removed connection 55A51394
11:45:29 AM: [MaintainConnections] All connections have clos

Does any one can provide help?