Unreal Engine Issues
Unreal Engine Issues
GPU Particle may blink when rendered in scene capture.
UE - Niagara - Nov 11, 2021Subsurface shading model is broken when ray traced shadows are used in 5.1+
UE - Graphics Features - Ray Tracing - Apr 19, 2023Crash when copying PF_Stencil format from the GPU to the CPU
UE - Rendering Architecture - RHI - Oct 18, 2023This is a crash related to copying depth-stencil render targets to the CPU. See linked UDN for more info. ...
Crash when entering Path Tracing view mode if r.Decal.NormalReprojectionEnabled true
UE - Graphics Features - Path Tracer - May 16, 2025Cash when entering Path Tracing view mode if r.Decal.NormalReprojectionEnabled true The licensee has reported: This crash happens because the DeferredShadingRenderer tries to extract the normal GBu ...
Crash in FUniformExpressionSet::FillUniformBuffer trying access deleted UTextureCollection
UE - Rendering Architecture - May 30, 2025Crash in FUniformExpressionSet::FillUniformBuffer trying access deleted UTextureCollection (Experimental in 5.6). The licensee describes their crash, their analysis, and a proposed fix: This crash ...
DynamicEntryBox with EntryBoxType Radial is stacking Entries if SectorCentralAngle is multiple of 360.0f and DistributeItemsEvenly is enabled
UE - Editor - UI Systems - May 27, 2025DynamicEntryBox with EntryBoxType Radial is stacking Entries if SectorCentralAngle is multiple of 360.0f and DistributeItemsEvenly is enabled. The licensee has provided an analysis: On void SRadia ...
Seam visible when using a material with BumpOffset on a Nanite mesh
UE - Graphics Features - Nanite - Sep 18, 2025When a material that uses BumpOffset is fed into the Emissive Color of Surface Opaque Default Lit material and then applied to a nanite mesh, a visible seam can be seen along edges and the intersect ...
Adding specific map to project crashes editor
UE - Gameplay - Dec 23, 2015Adding map from user's project, CityofEther.umap, crashes editor upon launch or attempting to open the map. Crashreporter: [Link Removed] ...
Packaged Game crashes after user has upgraded to 4.7
UE - Foundation - Core - Mar 31, 2015It only seems to be this user's game that crashes when he packages or does launch on windows I have reproduced this locally. I honestly don't know why this repro's, but I have an example project a ...
Project crashes when exiting mobile preview
UE - Gameplay - May 27, 2015User project crashes when exiting from mobile preview. Frequency: 5/5 Crashreporter: [Link Removed] ...