Unreal Engine Issues
Unreal Engine Issues
Playing audio files in Editor doesn't work when Magic Leap Zero Iteration is enabled
UE - Platform - XR - Jun 14, 2020When the "Enable Zero Iteration" and "Use ML Audio for Zero Iteration" settings are both checked, the audio doesn't play inside Unreal Editor. This happens in the following cases:Playing an audio fi ...
GPU / D3d Crash while editing Landscapes
UE - Graphics Tools - Terrain - Landscape - Mar 7, 2023From licensee: I've been experiencing consistent GPU crashes when tying to edit landscapes since updating to UE5.1. It seems to be exclusively an issue with DirectX 12 (SM5 & SM6). I have no pro ...
Modifying FinstancedStruct (Blueprint structs) properties inside another FInstancedStruct triggers an ensure and properties do not get saved.
UE - AI - Dec 16, 2024There is a bug with Blueprint structs having FInstancedStruct as a property. If you modify the DefaultValues of any property of an FInstancedStruct inside the blueprint struct asset, an ensure will ...
Ensure failing when skeletal mesh uses CapsuleIndirectShadow while Anti aliasing method is MSAA
UE - Platform - XR - Feb 23, 2023Video of issue provided by licensee can be seen here - [Link Removed] ...
Self-Shadowing changes when click on and off an actor
UE - Graphics Features - Jun 19, 2015Given a Movable Light with a Movable Mesh with enabled Self Shadow Only, the mesh will not cast inset shadows (despite this option begin forced to true according to Tooltip) unless the mesh is selec ...
HISMC always shows lowest LOD
UE - World Creation - Worldbuilding Tools - Foliage - Nov 22, 2016User report: HISMCs are currently broken in master. They always show the lowest LOD available for a mesh, so if you have a HISMC with a tree mesh set, you would always see the billboard of the tree ...
Spring Controller node rotation not working
OLD - Anim - Jan 31, 2019The issue has been reported by one of our licensee. He proposed a patch to be applied in AnimNode_SpringBone.cpp 188,189c188,191 ＜ FVector ParentToTarget = (TargetPos - ParentSpaceBase.GetLoca ...
Blueprint Array/Map properties with DefaultToInstanced types are not instanced properly
UE - Gameplay - Blueprint - May 6, 2019At a licensee, I discovered a problem where Blueprint-created array and map properties are not correctly propagating the ContainsInstancedReferenced property flag. This means that if you create a Ma ...
Missing SmallOSAlloc/Free memory tracking with LLM on iOS
UE - Platform - Mobile - Dec 11, 2020Licensee reports missing memory tracking for LLM on iOS: In Engine/Source/Runtime/Core/Private/HAL/MallocBinned.cpp in SmallOSAlloc, there is a compiler define for IOS and within it there is an LLM ...
Runtime Virtual Texture primitives set to never render to main pass still cause occlusion queries
UE - Graphics Features - Mar 23, 2021RVT only primitives are being pushed through the occlusion culling. It would be more efficient to not do that. ...