Unreal Engine Issues
Unreal Engine Issues
FMassArchetypeData::ExecutionFunctionForChunk crashes on binding shared fragments
UE - Engine Scaling - Mass - Feb 14, 2023FMassArchetypeData::ExecutionFunctionForChunk is using wrong mappings while binding shared fragments. It's using RequirementMapping.ChunkFragments while it should use RequirementMapping.ConstSharedF ...
Crash when TSR history separate translucency enabled
UE - Graphics Features - Mar 1, 2023Collison and Simple Collision Mip Level Crash
UE - Graphics Tools - Terrain - Landscape - Mar 21, 2023SortConsecutiveSections could crash if opening a sequence that has null shots
zComponent - Archive - Apr 6, 2023Light Mixer crashes on transform context menu
UE - AI Workflows - UI Systems - Dec 19, 2023Originates from UDN [Link Removed] ...
Crash in WorldPartition when creating cyclic references in LevelInstances
UE - World Creation - Worldbuilding Tools - Level Instances - Feb 1, 2024Crash when closing a connection from listen server when using
UE - World Creation - Worldbuilding Tools - World Partition - Oct 3, 2024Interchange Runtime .glb Import Crash When Packaged
UE - Editor - Content Pipeline - glTF - Jun 10, 2025The runtime import process works fine in editor, but fatal error when trying to do so with packaged build of project. My function that calls ImportAsset():bool UMeshLoader::RequestMeshLoad(FString ...
Rare crash when changing scalability settings rapidly
UE - Rendering - Architecture - RHI - Mar 10, 2026It seems like the code in RefreshSamplerStatesCallback() can overlap with FillUniformBuffer when it mutates the Wrap_WorldGroupSettings and Clamp_WorldGroupSettings FSharedSamplerState objects. Addi ...
Assert when having too many VR devices
UE - Platform - XR - Aug 31, 2018Internal team is encountering a crash when adding too many VR devices. Email thread titled "Re: Crash Logs" The bug is an internal limit of devices the code supports, which is 8. If a controller o ...