Unreal Engine Issues
Unreal Engine Issues
Using PCG, StaticMeshComponentPropertyOverride only takes effect when the flag ExecuteOnTheGPU is off.
UE - World Creation - Procedural Tools - Feb 9, 2026StaticMeshComponentPropertyOverride only takes effect when the flag ExecuteOnTheGPU is off. All error checking for StaticMeshComponentPropertyOverride turns off when the flag ExecuteOnTheGPU is off ...
Tooltips not appearing in Editor when hovering over assets due to Slate Cursor Move settings
UE - Editor - UI Systems - Slate - Feb 3, 2026User noticed that when Slate.EnableSyntheticCursorMoves is set to false the editor UI tooltips no longer display. As noted by the user, modifying Slate.CursorSignificantMoveDetectionThreshold to at ...
Material Functions are incorrectly listed in the Layer Asset list
UE - Rendering - Architecture - Materials - Feb 3, 2026Since UE 5.7, Material Functions are included in the Layer Asset list of the Material Layers of an instanced material using material layers. It is also possible to drag and drop Material Functions ...
Enabling MobileHDR on Meta Quest 3 device causes intermittent hang in splash screen
UE - Platform - XR - Feb 2, 2026Using MobileHDR on an actual MetaQuest device (MQ3 tested) causes an intermittent hang/deadlock in the splash screen. This hang in the splash screen seem to happen maybe 1 in 5 times. The first ti ...
Incorrect geometry for OnMouseMove event on Slider with RightToLeft flow direction
UE - Editor - UI Systems - Slate - Jan 28, 2026When a slider is in RTL flow direction, and thus its position is changed, the handle is not drawn at the correct position during mouse drag. Instead, the handle draws as if the slider was not moved ...
Chaos Cloth Asset - Wrong vertex colors imported from the StaticMeshImport node.
UE - Simulation - Visual - Jan 22, 2026The StaticMeshImport and SkeletalMeshImport nodes don’t have the correct vertex colors imported into the Cloth Asset. ...
Landscape Splines in Partially Loaded World Partition Levels Can Cause Nanite Landscape Invalidation
UE - Graphics Tools - Terrain - Nov 7, 2025Certain placements of landscape splines in world partition levels can cause Nanite landscape proxies to invalidate, and switch back to their non-nanite version. This happens when specific regions of ...
Crash when opening a texture or editing its properties after stopping a preview in the material editor
UE - Rendering - Architecture - Materials - Sep 5, 2025When a texture asset has certain properties edited, its PostEditChangeProperty() method calls to UTexture::NotifyMaterials(), which triggers a recompilation of materials that reference it in their m ...
Hardware Raytracing on Lumen can cause a crash on AMD Radeon GPUs
UE - Rendering - Graphics Features - Lumen - Jul 29, 2025Hardware Raytracing support can cause a crash on AMD Radeon GPUs when creating the RT pipeline state. ...
[CrashReport][GPUCrash] UpdateRadianceCaches
UE - Rendering - Graphics Features - Ray Tracing - May 19, 2025#13 crash out of 3051 in UE 5.7.3 on Windows#3 crash for UE - Rendering - Graphics Features in UE 5.7.3 on Windows#3 crash for UE - Rendering - Graphics Features - Ray Tracing in UE 5.7.3 on Windows ...