Unreal Engine Issues
Unreal Engine Issues
Subsurface 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. ...
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] ...
Cannot import objects with Bezier Curve modifier from Blender
UE - Editor - Content Pipeline - Import and Export - Apr 13, 2015Objects with a bezier curve modifier register as having no triangles when imported to editor from Blender as an FBX. ...
NavMesh does not build correctly to SkeletalMesh collision
UE - AI - Mar 16, 2015NevMesh cuts out holes for collision incorrectly with Skeletal Meshes. Skeletal Meshes with "Can Ever Affect Navigation" set to true and that have a Physics Asset are capable of causing this. ...
Dithered LOD Transition Tooltip within the Material Editor is Misleading
The tooltip states, "Wether the material should support a dithered LOD transition when used with the foliage system." It is my understanding that the foliage system uses LOD dithering by default, a ...
LIVE: Importing this OBJ file crashes the editor
UE - Editor - Content Pipeline - Import and Export - Oct 22, 2014Importing the attached Fly.obj crashes the editor on OSX. Does not occur in Windows 7. Crashreport: 435809 ...