Unreal Engine Issues
Unreal Engine Issues
Disabled Skeletal Mesh Sections cause Shadow Ray Tracing Flicker
UE - Graphics Features - Dec 12, 2025If a skeletal mesh has a section disabled the ray traced shadow will flicker when the camera or itself moves. Previously in 5.6.0 no raytraced shadow would appear if a section was disabled. This wa ...
[HORDE] Workspace does not respect stream view if the paths within the stream change to a newer CL then that of the stream
UE - Foundation - Horde - Dec 9, 2025For example, if you have the engine in a different stream and specify an exact CL to use on the import path, you then update that import path to a later change with a higher CL number than that of t ...
FStateTreeRunParallelStateTreeTask and TStateTreePropertyRef
UE - AI - StateTree - Dec 2, 2025When using a state tree that has a StateTreePropertyRef as a parameter in parallel any references will fail to resolve using the GetPropertyRef node. ...
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 ...
Virtual Texture Collection Indexing Not Working
UE - Rendering Architecture - RHI - Oct 30, 2025Textures at an index, other than 0, cannot be sampled from a Virtual Texture Collection in a material. When using the Texture Collection and Texture Object From Collection material nodes, with a Vir ...
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 - 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 - Graphics Features - Ray Tracing - May 19, 2025#24 crash out of 3946 in UE 5.7.1 on Windows#7 crash for UE - Graphics Features in UE 5.7.1 on Windows#3 crash for UE - Graphics Features - Ray Tracing in UE 5.7.1 on WindowsGPU Crash dump Triggered ...
[CrashReport][GPU Crash] NodeAndClusterCull
UE - Graphics Features - Nanite - Nov 19, 2024Users affected: 51 Total occurrences: 90 Last occurrence: November 19th 2024, 3:25:41 am First occurrence: August 7th 2024, 8:10:10 pm Latest version: ++UE5+Release-5.5-CL-37670630 Platform: Win64 [ ...
Crash after 'Reparent Blueprint' when renaming component on-top of orphaned inherited component
UE - Framework - Blueprint Editor - May 7, 2024After reparenting a blueprint and inherited components from the previous parent are removed, trying to give a new component the same name as a previous component causes a crash inside UObject::Renam ...