UE5.1 Level Conversion doesn't work on MacOS

Level World Partition Conversion doesn’t work on MacOS

Steps to reproduce:

  1. Create new “Blank” project
  2. Create new level: File → New Level → Basic
  3. Save current created level (Cmd + S) with name: “NewMap”
  4. Try to convert this level as World Partition: Tools → Convert Level → choice “NewMap” → Open
  5. Don’t change anything in the “Convert Settings” and press: Ok

Result:

  • The “NewMap_WP” doesn’t appear
  • In the World Settings: World Partition = None

Output Log:

LogSlate: Window 'Asset Dialog' being destroyed
LogSlate: Window 'Convert Settings' being destroyed
LightingResults: New page: Lighting Build
LogWorld: UWorld::CleanupWorld for NewMap, bSessionEnded=true, bCleanupResources=true
LogSlate: InvalidateAllWidgets triggered.  All widgets were invalidated
MapCheck: New page: Map Check
LightingResults: New page: Lighting Build
LogAudio: Display: Audio Device unregistered from world 'None'.
LogUObjectHash: Compacting FUObjectHashTables data took   0.46ms
LogChaos: FPhysicsSolverBase::AsyncDt:-1.000000
LogAIModule: Creating AISystem for world Untitled
LogAudio: Display: Audio Device (ID: 1) registered with world 'Untitled'.
LoadErrors: New page: New Map
LogWorldPartitionEditor: Display: Running commandlet: /Users/Shared/Epic Games/UE_5.1/Engine/Binaries/Mac/UnrealEditor.app/Contents/MacOS/UnrealEditor "../../../../../../kim/Documents/Unreal Projects/MyProject2/MyProject2.uproject" -BaseDir="/Users/Shared/Epic Games/UE_5.1/Engine/Binaries/Mac/" -Unattended -run=WorldPartitionConvertCommandlet /Game/NewMap -AllowCommandletRendering -ConversionSuffix -FoliageTypePath=/Game/FoliageTypes
LogWorldPartitionEditor: Display: #### Begin commandlet output ####
LogWorldPartitionEditor: Display: #### End commandlet output ####
LogAssetRegistry: Warning: ScanPathsSynchronous: Package /Game/NewMap_WP does not exist, will not scan.
Cmd: MAP LOAD FILE="../../../../../../kim/Documents/Unreal Projects/MyProject2/Content/NewMap_WP.umap" TEMPLATE=0 SHOWPROGRESS=1 FEATURELEVEL=3
LogEditorServer: Warning: Can't find file '../../../../../../kim/Documents/Unreal Projects/MyProject2/Content/NewMap_WP.umap'
Cmd: MAP CHECKDEP NOCLEARLOG
MapCheck: Map check complete: 0 Error(s), 0 Warning(s), took 0.083ms to complete.
LogFileHelpers: Loading map 'NewMap_WP' took 0.000
LogWorldPartitionEditor: Error: Failed to reopen world.

HW and Versions:

  • Unreal Editor: Version: 5.1.0-23058290+++UE5+Release-5.1
  • MacOS: Ventura 13.0.1
  • Mac Book Pro 2019, Intel Core 7, 16 GB RAM

Hello, I’m having the same problem. No errors in log, no new map. I’m using Unreal 5.1.1 on MacBook Pro M1 Pro - MacOS Ventura 13.0