Unreal Engine Issues
Unreal Engine Issues
HLOD generation can run out of space in the FName table
UE - World Creation - Worldbuilding Tools - Nov 26, 2025A licensee reported that generating the HLOD for his large WP based level is running out of space in the FName string table. He tracked the source of the problem to CL 47064601. Upon inspection ...
Enabling the ScriptableToolsFramework plugin causes compile errors in shipping configurations
UE - Graphics Tools - Modeling Tools - Nov 25, 2025Enabling the ScriptableToolsFramework plugin causes compile errors in shipping configurations. This also applies to any plugins which depend on it, such as the ScriptableToolsEditorMode plugin. Thi ...
UE5.7 InterchangeGenericAssetPipeline -> MaterialPipeline are not using parent material for material creation on import, was working in UE5.6
UE - Editor - Content Pipeline - Import and Export - Nov 24, 2025Hi there, It feels like a bug that the interchange generic pipeline is not using user-selected parent material for asset import, since it was working back in UE5.6 then we upgrade the engine to 5.7 ...
Orphaned BP actors when using UWorldPartitionBuilder
UE - World Creation - Worldbuilding Tools - World Partition - Nov 21, 2025From an EPS case: --------------------------------- We're seeing a recurring issue where child BP actors are becoming orphaned during any processing that uses UWorldPartitionBuilder. It affects ...
Duplicating OFPA Levels can result asserts when running the WorldPartitionBuilderCommandlet on multiple levels.
UE - World Creation - Worldbuilding Tools - World Partition - Nov 21, 2025The process will assert in UWorldPartition::Initialize on check(!OuterWorld->PersistentLevel->bAlreadyMovedActors); The log from a debugging session (see attached image) that a LevelInstance ge ...
Placed render targets are not initialized properly in D3D12
UE - Rendering - Architecture - RHI - Nov 21, 2025ScreenshotCapturedDelegate is never called in HDR
UE - Platform - Console - Nov 21, 2025In UGameViewportClient::ProcessScreenShots, when bHdrEnabled is true, the Bitmap array is never filled (the capture code uses BitmapHDR), so ScreenshotCapturedDelegate is never called for any custom ...
Landscape weight-blended layers don't paint exclusively anymore
UE - Graphics Tools - Terrain - Landscape - Nov 20, 2025Groom assets can no longer be created without curves data
UE - Graphics Features - Nov 18, 2025It used to be possible to create an empty Groom assets without an Alembic file. However, this is no longer possible because curve data is required This workflow is useful to create grooms that onl ...
FInstancedStruct member uproperties are not cached when "Generate Optimized Blueprint Component Data" is enabled
UE - Framework - Blueprint - Nov 18, 2025A licensee has encountered an issue where their FInstancedStruct isn't being gathered into CachedPropertyData when "Generate Optimized Blueprint Component Data" is enabled. The changes in [Link Remo ...