Unreal Engine Issues
Unreal Engine Issues
Rigidbody world space simulation overwrites scaling of the skeletal mesh
UE - Runtime - Simulation - Nov 14, 2022Reproduced 3/3 times. Issue also occurs in //UE5/Release-5.0 - CL 20979098 Binary. Not a Regression. ...
Tick Physics Async overwriting Physics Handle component
UE - Runtime - Simulation - Nov 23, 2022Reproduced 3/3 times. Issue also occurs in //UE5/Release-5.0 - CL 20979098 Binary. Confirmed NOT a Regression. ...
Adding Images: The image header is unrecognized
RS - Editor - Feb 14, 2025This issue occurs only on Windows 11 24H2, but it affects all RealityCapture versions on this OS. It is allso not possible to open the images with the Windows Photos App. ...
TSR ghosting when see through translucent wall
UE - Rendering - Features - Feb 7, 2023see through a translucent material will cause ghosting This issue did not occur in 5.0, it occurs when using TSR on UE 5.1 or later. ...
Temporal blur artifacts on Geometry Cache Components in Blueprint actor
zComponent - Archive - Jan 9, 2026When a Geometry Collection is in a Blueprint, attached to other components, it can render incorrect motion vectors at some angles. In the test project, any angle that is not a multiple of 45 will re ...
Memory leak when Lumen is disabled but r.MeshCardRepresentation=1
UE - Rendering - Features - Lumen - Jul 29, 2024When Lumen is disabled, but the cvar "r.MeshCardRepresentation" is set to 1, Lumen will continuously enqueue object removal from the Lumen Scene, without ever emptying the array of primitives to rem ...
Adding Components via Editor Utility Widgets does not add component to Details panel
UE - Framework - Blueprint Editor - Nov 14, 2022Using the Editor Utility Widget to add components to objects in UE does not appear to function as expected. I reproduced this 8/8 times in UE 5.1, 5.0, and 4.27, confirming that this is not a regres ...
Crash when applying Post Process SceneTexture and VertexInterpolator as emissive color
UE - Rendering - Architecture - Materials - Jun 22, 2021When selecting apply after connecting a Post Process SceneTexture and a VertexInterpolator into the emissive color node a crash occurs. This issue is occurring in Binary //UE5/Release-5.0-EarlyAcce ...
GPU Timeout when using a large scale Landscape and Water Body Ocean
UE - Graphics Tools - Terrain - Landscape - Dec 1, 2022Regression: Tested in //UE5/Release-5.0, this issue does not occur so regression is yes. The GPU Timeout only occurs in UE5/Release-5.1, as recreating this issue in previous versions of the editor ...
Iris: CurrTimeMS in FReplicationReader::ResolveAndDispatchUnresolvedReferences saturates on ARM64, so unresolved handles never move to the cold cache
UE - Framework - Networking - Oct 23, 2026In FReplicationReader::ResolveAndDispatchUnresolvedReferences, CurrTimeMS is computed as static_cast<uint32>(FPlatformTime::Seconds() * 1000.0f). FPlatformTime::Seconds() includes GetSecondsTimeOffs ...